CommScope CMC-21 - CMC-21, 28, and 35 Cabinet Rack Unit (RU) Configurations; Field Replacement Units (FRU) and Aftermarket Kits (AMK)

Material ID 860647713
Rev B, V.05, February 2022
Page 5
38 Pages
► CMC-21, 28, and 35 Cabinet Rack Unit (RU) Configurations
Table B shows RU space allocated to a cabinet based on number of battery strings with remaining RU
space dedicated to cabinet equipment.
Note 1: The bottom two battery shelves for CMC-21 and CMC-28 cabinets are adjustable from 7 or 8RU,
and for a CMC-35 the bottom three battery shelves are adjustable from 7 or 8RU.
Note 2: All batteries must be of the same type and from same manufacturer. Do not mix battery types
from different manufacturers. Pole or wall / H-frame mounting a cabinet with batteries is limited to
two battery strings; CMC-21/28 cabinets only – CMC-35 is not suitable for pole or wall / H-frame.
Table C: Rack Unit Configurations per Number of Cabinet Battery Strings
Cabinet
No. of
Battery
Strings
Cabinet Weight After Battery
Installation, with or without
Equipment (see Note)
Max No. of Battery
String RUs
Max No. of
Equipment RUs
(see Note)
Cooling
Type per
Table A
CMC-21
0
167-271 lbs. (76-123 Kgs)
0RU
21RU
T1, T3,
D2, D3
1
631-735 lbs. (286-333 Kgs)
7 or 8RU
14 or 13RU
2
1095-1147 lbs. (497-520 Kgs)
14 or 16RU
7 or 5RU
3
1559 lbs. (707 Kgs)
21RU
0RU
CMC-28
0
203-363 lbs. (92-165 Kgs)
0RU
28RU
T1, T2,
D3, D5
1
667-827 lbs. (301-375 Kgs)
7 or 8RU
21 or 20RU
2
1131-1231 lbs. (513-558 Kgs)
14 or 16RU
14 or 12RU
3
1595-1695 lbs. (724-769 Kgs-)
21 or 24RU
7 or 4RU
4
2059 lbs. (934 Kgs)
28RU
0RU
CMC-35
0
275-435 lbs. (125-197 Kgs)
0RU
35RU
T1, T2,
D3, D5
1
739-899 lbs. (335-408 Kgs)
7 or 8RU
28 or 27RU
2
1203-1363 lbs. (546-618 Kgs)
14 or 16RU
21 or 19RU
4
2131 lbs. (966 Kgs)
28 or 32RU
7RU or 3RU
Note: Based on an average VRLA battery weight of 116 lbs. at 464 lbs. for one string of batteries plus
weight of cabinet with or without equipment before battery installation. Amount of available total
RUs will vary in relation to equipment installed in the cabinet.
► Field Replacement Units (FRU) and Aftermarket Kits (AMK)
Table D: FRU and AMK List
Item
Material ID
Description
1
760242232
FRU, CMC-21 Equipment Back Panel
2
760242233
FRU, CMC-28 Equipment Back Panel
3
760242234
FRU, CMC-35 Equipment Back Panel
4
760242240
FRU, Solar Shield, CMC
5
760242242
FRU, Inner Loop Fan, CMC HX Thermosiphon, T1
6
760242243
FRU, Outer Loop Fan, CMC HX Thermosiphon, T1
7
760242247
AMK, H-frame / Wall Mount Kit, CMC
8
760242250
AMK, Pole Mount Kit, CMC
9
760242554
AMK, Plinth, 6" High, CMC