Rack installation
The following table lists the rack installation options that are available for the SR550 server.
Table 37. Rack installation options
Description Part number
Feature
code
Maximum
supported
4-post rail kits
ThinkSystem Tool-less Slide Rail 7M27A05702 AXCA 1
ThinkSystem Tool-less Slide Rail Kit with 2U CMA 7M27A05700 AXCH 1
ThinkSystem Screw-in Slide Rail 4M17A07274 AXFN 1
ThinkSystem Screw-in Slide Rail Kit with 2U CMA 4M17A07280 B0TD 1
ThinkSystem Tool-less Friction Rail 4M17A07273 AXFM 1
Cable management arm (CMA) upgrade
ThinkSystem 2U CMA Upgrade Kit for Tool-less Slide Rail 7M27A05698 None^ 1*
ThinkSystem 2U CMA Upgrade Kit for Screw-in Slide Rail 4M17A07275 AXFU 1**
Front VGA port
ThinkSystem SR550/SR590/SR650 EIA Latch w/ VGA Upgrade Kit 7Z17A02578 AUS8 1
^ Field upgrade only.
* The CMA Upgrade Kit for Tool-less Slide Rail is supported with the Tool-less Slide Rail (7M27A05702) only.
** The CMA Upgrade Kit for Screw-in Slide Rail is supported with the Screw-in Slide Rail (4M17A07274) only.
The following table summarizes the rail kit features and specifications.
Table 38. Rail kit features and specifications summary
Feature
Tool-less Slide Rail Screw-in Slide Rail
Tool-less Friction RailWithout CMA With CMA Without CMA With CMA
Part number 7M27A05702 7M27A05700 4M17A07274 4M17A07280 4M17A07273
CMA 7M27A05698 Included 4M17A07275 Included No support
Rail length 730 mm
(28.74 in.)
807 mm
(31.8 in.)
836.8 mm
(32.9 in.)
836.8 mm
(32.9 in.)
728.1 mm
(28.7 in.)
Rail type Full-out slide (ball bearing) Full-out slide (ball bearing) Half-out slide (friction)
Tool-less installation Yes No Yes
In-rack server maintenance Yes Yes No
1U PDU support Yes Yes Yes
0U PDU support Limited* Limited* Limited**
Rack type IBM and Lenovo 4-post,
IEC standard-compliant
IBM and Lenovo 4-post,
IEC standard-compliant
IBM and Lenovo 4-post,
IEC standard-compliant
Mounting holes Square or round Square, round, or threaded Square or round
Mounting flange thickness 2 mm (0.08 in.) –
3.3 mm (0.13 in.)
2 mm (0.08 in.) –
3.3 mm (0.13 in.)
2 mm (0.08 in.) –
3.3 mm (0.13 in.)
Distance between front
and rear mounting
flanges^
609.6 mm (24 in.) –
863.6 mm (34 in.)
609.6 mm (24 in.) –
812.8 mm (32 in.)
609.6 mm (24 in.) –
863.6 mm (34 in.)
* If a 0U PDU is used, the rack cabinet must be at least 1100 mm (43.31 in.) deep if no CMA is used, or at least 1200 mm (47.24
in.) deep if a CMA is used.
** If a 0U PDU used, the rack must be at least 1000 mm (39.37 in.) deep.
^ Measured when mounted on the rack, from the front surface of the front mounting flange to the rear most point of the rail.
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