Server cabinet

Background of the Invention

0001The present invention relates to a server cabinet, and more particularly, a server cabinet having inset front-to-back beams and removable vertical posts.

0002Server cabinets are well known in the art. For example, <patcit id="pcit0001" dnum="US7293666B"><text>U. S. Patent No. 7,293,666</text></patcit>, which is assigned to American Power Conversion Corporation (West Kingston, RI), discloses a server cabinet. However, the server cabinet does not have inset front-to-back beams and removable vertical posts.

0003Therefore, there is a need for a server cabinet having inset front-to-back beams and removable vertical posts.

0004<patcit id="pcit0002" dnum="US2003062326A"><text>US 2003/062326</text></patcit> discloses a four-column rack including a first rack having a pair of upright columns connected by a first cross-member, a second rack having a pair of upright columns connected by a second cross-member. The first and second racks are connected by an adjustment member. The adjustment member has a first end attached to the first cross-member of the first rack and a second end attached to the second cross-member of the second rack.

0005<patcit id="pcit0003" dnum="US2010219726A"><text>US 2010/219726</text></patcit> discloses a network cabinet comprising a base member, two pairs of vertical frame rail members connected to the base member, and a top cover supported by at least one of the vertical frame rail members. The base member defines an opening and another opening is defined in the top cover. The vertical frame rail members are positioned spaced apart from four sidewalls from four corners of the cabinet formed by the four sidewalls, where each sidewall comprises a panel or a door. The two pairs of vertical frame rail members and the four sidewalls define at least one cable management pathway and at least a portion of the cable management pathway is vertically aligned with at least a portion of the opening of the base member and the opening of the top cover. The network cabinet may also comprise two front corner posts and two rear corner posts.

Summary of the Invention

0006According to the present invention there is provided a frame for a cabinet, per claim 1.

Brief Description of the Drawings

0007<ul id="ul0001" list-style="none" compact="compact"><li><figref idref="f0001">FIG. 1</figref> is a top front perspective view of a server cabinet according to an embodiment of the present invention;</li><li><figref idref="f0002">FIG. 2</figref> is a top front perspective view of the server cabinet of <figref idref="f0001">FIG. 1</figref>, showing the front door, back door, and side panels in an open position;</li><li><figref idref="f0003">FIG. 3</figref> is an exploded top front perspective view of the server cabinet of <figref idref="f0001">FIG. 1</figref>;</li><li><figref idref="f0004">FIG. 4</figref> is a top front perspective view of the cabinet frame of <figref idref="f0003">FIG. 3</figref>;</li><li><figref idref="f0005">FIG. 5</figref> is an exploded top front perspective view of the cabinet frame of <figref idref="f0004">FIG. 4</figref>;</li><li><figref idref="f0006">FIG. 6</figref> is an enlarged top front perspective view of detail 6 of <figref idref="f0005">FIG. 5</figref>;</li><li><figref idref="f0007">FIG. 7</figref> is an enlarged top front perspective view of detail 7 of <figref idref="f0005">FIG. 5</figref>;</li><li><figref idref="f0008">FIG. 8</figref> is an exploded bottom front perspective view of the bottom frame of <figref idref="f0005">FIG. 5</figref>;</li><li><figref idref="f0009">FIG. 9</figref> is an enlarged bottom front perspective view of detail 9 of <figref idref="f0008">FIG. 8</figref>;</li><li><figref idref="f0010">FIG. 10</figref> is an enlarged bottom front perspective view of detail 10 of <figref idref="f0008">FIG. 8</figref>;</li><li><figref idref="f0011">FIG. 11</figref> is a top view of the cabinet frame of <figref idref="f0004">FIG. 4</figref>;</li><li><figref idref="f0012">FIG. 12</figref> is an enlarged top view of detail 12 of <figref idref="f0011">FIG. 11</figref>;</li><li><figref idref="f0013">FIG. 13</figref> is a top view of a cabinet frame having a width (e.g., 700mm) greater than the width (e.g., 600mm) of the cabinet frame of <figref idref="f0011">FIG. 11</figref>;</li><li><figref idref="f0014">FIG. 14</figref> is an enlarged top view of detail 14 of <figref idref="f0013">FIG. 13</figref>;</li><li><figref idref="f0015">FIG. 15</figref> is a top view of a cabinet frame having a width (e.g., 800mm) greater than the width (e.g., 700mm) of the cabinet frame of <figref idref="f0013">FIG. 13</figref>;</li><li><figref idref="f0016">FIG. 16</figref> is an enlarged top view of detail 16 of <figref idref="f0015">FIG. 15</figref>;</li><li><figref idref="f0017">FIG. 17</figref> is a top front perspective view of the cabinet frame of <figref idref="f0004">FIG. 4</figref>, showing the equipment rails installed;</li><li><figref idref="f0018">FIG. 18</figref> is an enlarged top front perspective view of detail 18 of <figref idref="f0017">FIG. 17</figref>;</li><li><figref idref="f0019">FIG. 19</figref> is an exploded top front perspective view of <figref idref="f0019">FIG. 19</figref>;</li><li><figref idref="f0020">FIG. 20</figref> is a side view of the cabinet frame of <figref idref="f0017">FIG. 17</figref>;</li><li><figref idref="f0021">FIG. 21</figref> is a side view of detail 21 of <figref idref="f0020">FIG. 20</figref>;</li><li><figref idref="f0022">FIG. 22</figref> is top back perspective view of the cabinet frame of <figref idref="f0017">FIG. 17</figref>, showing patch panel cassettes installed on the equipment rails;</li><li><figref idref="f0023">FIG. 23</figref> is an enlarged top back perspective view of detail 23 of <figref idref="f0022">FIG. 22</figref>;</li><li><figref idref="f0024">FIG. 24</figref> is a partially exploded top back perspective view of <figref idref="f0023">FIG. 23</figref>;</li><li><figref idref="f0025">FIG. 25</figref> is a top back perspective view of the cabinet frame of <figref idref="f0017">FIG. 17</figref>, showing cable management fingers installed on the equipment rails;</li><li><figref idref="f0026">FIG. 26</figref> is an enlarged top back perspective view of detail 26 of <figref idref="f0025">FIG. 25</figref>;</li><li><figref idref="f0027">FIG. 27</figref> is a partially exploded top back perspective view of <figref idref="f0026">FIG. 26</figref>;</li><li><figref idref="f0028">FIG. 28</figref> is a top back perspective view of the cabinet frame of <figref idref="f0017">FIG. 17</figref>, showing vertical blanking panels installed on the equipment rails;</li><li><figref idref="f0029">FIG. 29</figref> is an enlarged top back perspective view of detail 29 of <figref idref="f0028">FIG. 28</figref>;</li><li><figref idref="f0030">FIG. 30</figref> is a partially exploded top back perspective view of <figref idref="f0029">FIG. 29</figref>;</li><li><figref idref="f0031">FIG. 31</figref> is a partially exploded top back perspective view of <figref idref="f0030">FIG. 30</figref>;</li><li><figref idref="f0032">FIG. 32</figref> is a top front perspective view of the cabinet frame of <figref idref="f0004">FIG. 4</figref>, showing the front door installed and in a closed position;</li><li><figref idref="f0033">FIG. 33</figref> is an enlarged top front perspective view of detail 33 of <figref idref="f0032">FIG. 32</figref>;</li><li><figref idref="f0034">FIG. 34</figref> is a top front perspective view of the cabinet frame of <figref idref="f0032">FIG. 32</figref>, showing the front door in an open position;</li><li><figref idref="f0035">FIG. 35</figref> is an enlarged top front perspective view of detail 35 of <figref idref="f0034">FIG. 34</figref>;</li><li><figref idref="f0036">FIG. 36</figref> is an enlarged top front perspective view of detail 36 of <figref idref="f0034">FIG. 34</figref>;</li><li><figref idref="f0037">FIG. 37</figref> is an enlarged top front perspective view of detail 37 of <figref idref="f0034">FIG. 34</figref>;</li><li><figref idref="f0038">FIG. 38</figref> is a top back perspective view of the cabinet frame of <figref idref="f0004">FIG. 4</figref>, showing the back door installed and in a closed position;</li><li><figref idref="f0039">FIG. 39</figref> is an enlarged top back perspective view of detail 39 of <figref idref="f0038">FIG. 38</figref>;</li><li><figref idref="f0040">FIG. 40</figref> is a top back perspective view of the cabinet frame of <figref idref="f0038">FIG. 38</figref>, showing the back door in an open position;</li><li><figref idref="f0041">FIG. 41</figref> is an enlarged top back perspective view of detail 41 of <figref idref="f0040">FIG. 40</figref>;</li><li><figref idref="f0042">FIG. 42</figref> is an enlarged top back perspective view of detail 42 of <figref idref="f0040">FIG. 40</figref>;</li><li><figref idref="f0043">FIG. 43</figref> is an enlarged top back perspective view of detail 43 of <figref idref="f0040">FIG. 40</figref>;</li><li><figref idref="f0044">FIG. 44</figref> is a top front perspective view of the cabinet frame of <figref idref="f0004">FIG. 4</figref>, showing the side door installed and in a closed position;</li><li><figref idref="f0045">FIG. 45</figref> is an enlarged top front perspective view of detail 45 of <figref idref="f0044">FIG. 44</figref>;</li><li><figref idref="f0046">FIG. 46</figref> is a top front perspective view of the cabinet frame of <figref idref="f0044">FIG. 44</figref>, showing the side door in an open position;</li><li><figref idref="f0047">FIG. 47</figref> is an enlarged top front perspective view of detail 47 of <figref idref="f0046">FIG. 46</figref>;</li><li><figref idref="f0048">FIG. 48</figref> is an enlarged top front perspective view of detail 48 of <figref idref="f0046">FIG. 46</figref>;</li><li><figref idref="f0049">FIG. 49</figref> is an enlarged top front perspective view of detail 49 of <figref idref="f0046">FIG. 46</figref>;</li><li><figref idref="f0050">FIG. 50</figref> is a top back perspective view of the cabinet frame of <figref idref="f0044">FIG. 44</figref>, showing the side door in an open position;</li><li><figref idref="f0051">FIG. 51</figref> is an enlarged top back perspective view of detail 51 of <figref idref="f0050">FIG. 50</figref>;</li><li><figref idref="f0052">FIG. 52</figref> is an enlarged top back perspective view of detail 52 of <figref idref="f0050">FIG. 50</figref>;</li><li><figref idref="f0053">FIG. 53</figref> is top front perspective view of the cabinet frame of <figref idref="f0004">FIG. 4</figref>, showing the top cap installed;</li><li><figref idref="f0054">FIG. 54</figref> is an enlarged top front perspective view of detail 54 of <figref idref="f0053">FIG. 53</figref>;</li><li><figref idref="f0055">FIG. 55</figref> is a partially exploded top front perspective view of <figref idref="f0054">FIG. 54</figref>;</li><li><figref idref="f0056">FIG. 56</figref> is a top view of the top cap of <figref idref="f0053">FIG. 53</figref>, showing the cabinet frame below it in hidden lines;</li><li><figref idref="f0057">FIG. 57</figref> is an enlarged top view of detail 57 of <figref idref="f0056">FIG. 56</figref>;</li><li><figref idref="f0058">FIG. 58</figref> is a top view of a top cap for a cabinet frame having a width (e.g., 700mm) greater than the width (e.g., 600mm) of the cabinet frame of <figref idref="f0053">FIG. 53</figref>, showing the wider cabinet frame below it in hidden lines and some of the grommets partially or fully removed;</li><li><figref idref="f0059">FIG. 59</figref> is an enlarged top view of detail 59 of <figref idref="f0058">FIG. 58</figref>;</li><li><figref idref="f0060">FIG. 60</figref> is a top view of a top cap for a cabinet frame having a width (e.g., 800mm) greater than the width (e.g., 600mm) of the cabinet frame of <figref idref="f0058">FIG. 58</figref>, showing the wider cabinet frame below it in hidden lines and some of the grommets partially or fully removed; and</li><li><figref idref="f0061">FIG. 61</figref> is an enlarged top view of detail 61 of <figref idref="f0060">FIG. 60</figref>.</li></ul>

Detailed Description

0008As shown in <figref idref="f0001 f0002 f0003">FIGS. 1-3</figref>, server cabinet 100 includes cabinet frame 200 (<figref idref="f0004 f0005 f0006 f0007 f0008 f0009 f0010 f0011 f0012 f0013 f0014 f0015 f0016">FIGS. 4-16</figref>), equipment rails 300A, 300B (<figref idref="f0017 f0018 f0019 f0020 f0021 f0022 f0023 f0024 f0025 f0026 f0027 f0028 f0029 f0030 f0031">FIGS. 17-31</figref>), front door 400 (<figref idref="f0032 f0033 f0034 f0035 f0036 f0037">FIGS. 32-37</figref>), back door 500 (<figref idref="f0038 f0043">FIGS. 38-43</figref>), side door 600 (<figref idref="f0044 f0045 f0046 f0047 f0048 f0049 f0050 f0051 f0052">FIGS. 44-52</figref>), and top cap 700 (<figref idref="f0053 f0054 f0055 f0056 f0057 f0058 f0059 f0060 f0061">FIGS. 53-61</figref>).

0009As shown in <figref idref="f0004">FIG. 4</figref>, cabinet frame 200 includes front-to-back beams 210, top and bottom side-to-side beams 220A, 220B, vertical posts 230, and face plates 240.

0010As shown in <figref idref="f0005">FIG. 5</figref>, front-to-back beams 210 and top side-to-side beams 220A are connected to form top frame 250A. Similarly, front-to-back beams 210 and bottom side-to-side beams 220B are connected to form bottom frame 250B. Preferably, front-to-back beams 210 are permanently connected to side-to-side beams 220A, 220B, for example, using permanent connectors, such as rivets and welds, but it is likewise contemplated that front-to-back beams 210 are removably connected to side-to-side beams 220A, 220B, for example, using removable connectors, such as nuts and bolts and screws.

0011As shown in <figref idref="f0006">FIGS. 6</figref> and <figref idref="f0007">7</figref>, vertical posts 230 are connected to top and bottom frames 250A, 250B, and more particularly, side-to-side beams 220A, 220B, to form cabinet frame 200. Preferably, vertical posts 230 are removably connected to side-to-side beams 220A, 220B, for example, using removable connectors, such as nuts and bolts and screws, but it is likewise contemplated that vertical posts 230 are permanently connected to side-to-side beams 220A, 220B, for example, using permanent connectors, such as rivets and welds. Cover plates 232 are removably connected to vertical posts 230, for example, using removable connectors, such as nuts and bolts and screws, and when removed, provide access to cabinet frame assembly openings 234. Additionally, when installed, cover plates 232 act as standoffs for ganging multiple cabinets.

0012Additionally, face plates 240 are removably connected to side-to-side beams 220A, 220B and vertical posts 230, for example, using removable connectors, such as nuts and bolts and screws, but it is likewise contemplated that face plates 240 are permanently connected to side-to-side beams 220A, 220B, for example, using permanent connectors, such as rivets and welds. Preferably, face plates 240 provide additional stiffness to cabinet frame 200, and more particularly, side-to-side beams 220A, 220B and vertical posts 230. Cover plates 242 are removably connected to face plates 240, and ultimately, side-to-side beams 220A, for example, using removable connectors, such as nuts and bolts and screws, and when removed, provide access to cable routing openings 224, 244.

0013Preferably, top and bottom frames 250A, 250B are assembled before shipping server cabinet 100, for example, at a factory. However, vertical posts 230 and face plates 240, as well as equipment rails 300, front door 400, back door 500, side door 600, and top cap 700, might be assembled after shipping server cabinet 100, for example, at a data center or a remote assembly facility located near the data center, which reduces the shipping volume, and therefore, the shipping cost of server cabinet 100, without significantly impacting the assembly time.

0014As shown in <figref idref="f0008 f0009 f0010">FIGS. 8-10</figref>, front and back casters 260A, 260B and leveling legs 270 are connected to bottom frame 250B, and more particularly, bottom side-to-side beams 220B. Preferably, back casters 260B and leveling legs 270 are rotatably connected to bottom frame 250B, and more particularly, bottom side-to-side beams 220B, to aid in positioning and leveling of server cabinet 100, but it is likewise contemplated that front casters 260A, taken alone or in combination with back casters 260B, are rotatably connected to bottom frame 250B, and more particularly, bottom side-to-side beams 220B, to further aid in positioning of server cabinet 100.

0015As shown in <figref idref="f0011">FIG. 11</figref> and <figref idref="f0012">12</figref>, front-to-back beams 210 are inset relative to vertical posts 230, and more particularly, intersection of side-to-side beams 220A, 220B and vertical posts 230, forming cable-routing area 280 along the side of cabinet frame 200, for example, between equipment-mounting area 290, as defined by equipment rails 300A, 300B, and side door panels 610A, 610B of side door 600.

0016As the width of server cabinet 100 is increased, for example, from 600mm (<figref idref="f0011">FIGS. 11</figref> and <figref idref="f0012">12</figref>) to 700mm (<figref idref="f0013">FIGS. 13</figref> and <figref idref="f0014">14</figref>) and 800mm (<figref idref="f0015">FIGS. 15</figref> and <figref idref="f0016">16</figref>), the width of cable-routing area 280 is increased, while the width of equipment-mounting area 290 remains the same.

0017As shown in <figref idref="f0017 f0018 f0019">FIG. 17-19</figref> and <figref idref="f0028 f0031">28-31</figref>, equipment rails 300A, 300B are connected to cabinet frame 200, and more particularly, front-to-back beams 210 of top and bottom frames 250A, 250B. Preferably, equipment rails 300A, 300B are adjustable. That is, equipment rails 300A, 300B are removably connected to cabinet frame 200, and more particularly, front-to-back beams 210 of top and bottom frames 250A, 250B, for example, using removable connectors, such as nuts and bolts and screws.

0018For example, as shown in <figref idref="f0019">FIGS. 19</figref> and <figref idref="f0031">31</figref>, equipment rails 300A, 300B include channel nuts 310 and mounting bolts 320. Channel nuts 310 includes tabs 312 for positioning channel nuts 310 through top openings 212 in front-to-back beams 210 and aligning channel nuts 310 with side openings 214 in front-to-back beam 210. Additionally, channel nuts 310 include barbs 314 for securing channel nuts 310 to front-to-back beams 210 and grounding equipment rails 300 to cabinet frame 200.

0019As shown in <figref idref="f0020">FIGS. 20</figref> and <figref idref="f0021">21</figref>, when channel nuts 310 and mounting bolts 320 are engaged and tight, equipment rails 300A, 300B are secured to front-to-back beams 210. However, when channel nuts 310 and mounting bolts 320 are engaged, but loose, equipment rails 300A, 300B slide along elongated openings 214 in front-to-back beams 210, allowing equipment rails 300A, 300B to be positioned at any number of locations along elongated openings 214 in front-to-back beams 210.

0020Depending on the location of equipment rails 300A, 300B, additional cable routing areas 280 might be provided, for example, in the front of server cabinet 100 and in the back of server cabinet 100.

0021Additionally, as shown in <figref idref="f0019">FIG. 19</figref> and <figref idref="f0031">31</figref>, equipment rails 300A, 300B include stiffeners 330, which are removably connected to equipment rails 300A, 300B, for example, using removable connectors, such as nuts and bolts and screws, but it is likewise contemplated that stiffeners 330 are permanently connected to equipment rails 300A, 300B, for example, using permanent connectors, such as rivets and welds. Alternatively, equipment rails 300A, 300B and stiffeners 330 are integrally formed.

0022As shown in <figref idref="f0022 f0023 f0024 f0025 f0026 f0027">FIGS. 22-27</figref>, equipment rails 300B include mounting openings 340 for mounting electronic equipment, such as servers, patch panels, and switches, in server cabinet 100, and are configured to receive accessory mounting brackets, such as patch panel cassette mounting brackets 350 and cable management finger mounting brackets 360, for mounting accessories, such as patch panel cassettes 352 and cable management fingers 362 in server cabinet 100, and more particularly, cable routing area 280 of server cabinet 100.

0023For example, as shown in <figref idref="f0022 f0023 f0024">FIGS. 22-24</figref>, equipment rails 300B include patch panel cassette mounting brackets 350 for mounting patch panel cassettes 352 to equipment rails 300B. As shown in <figref idref="f0024">FIG. 24</figref>, patch panel cassette mounting brackets 350 are removably connected to equipment rails 300B, for example, using removable connectors, such as nuts and bolts and screws, but it is likewise contemplated that patch panel cassette mounting brackets 350 are permanently connected to equipment rails 300B, for example, using permanent connectors, such as rivets and welds. Alternatively, equipment rails 300B and patch panel cassette mounting brackets 350 are integrally formed. Patch panel cassettes 352 snap-fit into patch panel cassette housings 354, which in turn, snap-fit into patch panel cassette mounting brackets 350. As such, patch panel cassette housings 354 are quickly and easily removed from patch panel cassette mounting brackets 350, providing greater access to patch panel cassettes 350.

0024Alternatively, as shown in <figref idref="f0025 f0026 f0027">FIGS. 25-27</figref>, equipment rails 300B include cable management finger mounting brackets 360 for mounting cable management fingers 362 to equipment rails 300B. As shown in <figref idref="f0027">FIG. 27</figref>, cable management finger mounting brackets 360 are removably connected to equipment rails 300B, for example, using removable connectors, such as nuts and bolts and screws, but it is likewise contemplated that cable management finger mounting brackets 350 are permanently connected to equipment rails 300B, for example, using permanent connectors, such as rivets and welds. Alternatively, equipment rails 300B and cable management finger mounting brackets 360 are integrally formed. Cable management fingers 362 snap-fit into cable management finger mounting brackets 360.

0025As shown in <figref idref="f0028 f0029 f0030 f0031">FIGS. 28-31</figref>, equipment rails 300A include mounting openings 340 for mounting electronic equipment, such as servers, patch panels, and switches, in server cabinet 100, and are configured to receive blanking panels, such as horizontal blanking panels (not shown), which are typically mounted to equipment rails 300A using mounting openings 340, and vertical blanking panels 370, for sealing open areas of server cabinet 100 to separate cooled intake air and heated exhaust air.

0026For example, as shown in <figref idref="f0028 f0029 f0030 f0031">FIGS. 28-31</figref>, equipment rails 300A include vertical blanking panels 370. As shown in <figref idref="f0030">FIG. 30</figref>, vertical blanking panels 370 are removably connected to equipment rails 300A, for example, using removable connectors, such as nuts and bolts and screws, but it is likewise contemplated that vertical blanking panels 370 are permanently connected to equipment rails 300A, for example, using permanent connectors, such as rivets and welds. Alternatively, equipment rails 300A and vertical blanking panels 370 are integrally formed. Additionally, vertical blanking panels 370 are removably connected to vertical posts 230, providing additional stiffness to cabinet frame 200, and more particularly, vertical posts 230.

0027As shown in <figref idref="f0032">FIGS. 32</figref> and <figref idref="f0034">34</figref>, front door 400 includes front door panel 410, which is rotatably connected to cabinet frame 200, and more particularly, face plate 240, and ultimately, vertical post 230, and rotates from closed position (<figref idref="f0032">FIG. 32</figref>) to open position (<figref idref="f0034">FIG. 34</figref>). Additionally, as shown in <figref idref="f0036">FIGS. 36</figref> and <figref idref="f0037">37</figref>, front door panel 410 is removably connected to cabinet frame 200, and includes spring-loaded hinge pins 420 for quick and easy installation and removal thereof.

0028As shown in <figref idref="f0038">FIGS. 38</figref> and <figref idref="f0040">40</figref>, back door 500 includes back door panels 510, which are rotatably connected to cabinet frame 200, and more particularly, face plate 240, and ultimately, vertical post 230, and rotate from closed position (<figref idref="f0038">FIG. 38</figref>) to open position (<figref idref="f0040">FIG. 40</figref>). Additionally, as shown in <figref idref="f0042">FIGS. 42</figref> and <figref idref="f0043">43</figref>, back door panels 510 are removably connected to cabinet frame 200, and include flanges 520 to prevent removal of back door panels 510 when open.

0029As shown in <figref idref="f0044">FIGS. 44</figref>, <figref idref="f0046">46</figref>, and <figref idref="f0050">50</figref>, side door 600 includes side door panels 610A, 610B, which are rotatably connected to cabinet frame 200, and more particularly, vertical posts 230, as well as top cap 700, and rotate from closed position (<figref idref="f0046">FIG. 46</figref>) to open position (<figref idref="f0046">FIGS. 46</figref> and <figref idref="f0050">50</figref>). Additionally, as shown in <figref idref="f0048">FIGS. 48</figref>, <figref idref="f0049">49</figref>, <figref idref="f0051">51</figref>, and <figref idref="f0052">52</figref>, side door panels 610A, 610B are removably connected to cabinet frame 200, as well as top cap 700, and include spring-loaded hinge pins 620 for quick and easy installation and removal thereof.

0030As shown in <figref idref="f0053 f0054 f0055">FIGS. 53-55</figref>, top cap 700 is removably connected to cabinet frame 200, and more particularly, front-to-back beams 210 and side-to-side beams 220A of top frame 250A and vertical posts 230, for example, using removable connectors, such as nuts and bolts and screws, and includes data cable openings 720, for example, fitted with grommets 722 and grommet covers 724, disposed above the sides of sever cabinet 100, and more particularly, cable-routing areas 280, and power cable openings 730, for example, fitted with knock-outs 732, disposed above the back of server cabinet 100.

0031As the width of server cabinet 100 is increased, for example, from 600mm (<figref idref="f0056">FIGS. 56</figref> and <figref idref="f0057">57</figref>) to 700mm (<figref idref="f0058">FIGS. 58</figref> and <figref idref="f0059">59</figref>) and 800mm (<figref idref="f0060">FIGS. 60</figref> and <figref idref="f0061">61</figref>), the width of data cable opening 720 is increased, for example, to accommodate the additional width of cable-routing area 280.

0032In certain embodiments of the present invention, sensors (not shown), such as door position sensors and environmental sensors (e.g., temperature, humidity, etc.) are mounted on cabinet frame 200, for example, in openings 224, 244.

0033In certain embodiments of the present invention, modular jacks (not shown), such as Panduit's Mini-Com® modular jacks, are mounted, for example, in openings 224, 244 for quick and

0034easy connection and disconnection of door-mounted electronics, such as handles, keypads, readers, and sensors.