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| Surge Protection |
None |
20,000 amps per wire, high speed hybrid circuit, field replaceable |
same as VIB |
same as VIB |
same as VIB |
same as VIB |
None |
| Cable Connection |
U 187A/G |
53 Pin mil-spec |
U 187A/G |
53 Pin mil-spec
& U 187A/G |
53 Pin mil-spec |
RJ21 Female |
53 Pin mil-spec |
| Telecom Connection |
push button binding posts for bare wires |
RJ45/RJ11 two wire, qty 24 and two intercom binding posts |
same as VIB |
same as VIB |
|
same as VIB |
qty 4 DB-25M & qty 4 DB-25F |
| Weight |
15 lbs |
6.3 lbs |
9.0 lbs |
7.5 lbs |
6.0 lbs |
6.2 lbs |
6.0 lbs |
| Case Dimensions* |
8.5" x 14.75" x 5.25" |
7" x 6.5" x 4.3" |
same as VIB |
same as VIB |
same as VIB |
same as VIB |
same as VIB |
| Writing Plate |
single piece |
divided, marked by circuit (1-24) |
same as VIB |
same as VIB |
T1 diagram & circuits |
same as VIB |
RS530A diagram and circuits |
| Wire Entry |
"U" notches |
notches with brush assembly |
same as VIB |
same as VIB |
same as VIB |
same as VIB |
same as VIB |
| Mounting |
D-rings for strap (field mounting) |
D rings for strap (field mounting) OR optional wall mounting |
same as VIB |
same as VIB |
same as VIB |
wall mount |
same as VIB |
| Grounding |
none |
mil-spec ground stud |
same as VIB |
same as VIB |
same as VIB |
same as VIB |
same as VIB |
| Finish |
Powder coated olive drab |
powder coated flat black, 16 guage stainless steel construction |
same as VIB |
same as VIB |
Battleship Grey |
same as VIB |
Olive Drab |
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