SM500A—Automatic Switching System
Black Box Corporation
15
990-000-0001-E8
SM507-C
AB Double Channel Coax, 75 ohm
SM508-C
AB RJ-11 Card
SM508-C-2
Double RJ-11 Card
SM509-C
AB RJ-45 Cat-5 Card
SM509-C-2
Double RJ-45 Cat-5 Card
SM511-C
AB DB-9 Card F/F
SM512-C
AB DB-15 (T-1) Card F/F
SM518
Blank panel, 7" high
Figure 2.5. Switching Interface Cards
2.5 System Cables
Model
Description
EL04M-04
Interconnecting cable for system gang switching, RJ-11 type, 3 ft
EL04M-14
Interconnecting cable for system gang switching, RJ-11 type, 15 ft
2.6 AC Redundant Power Supply
2.6.1 Description
The AC Redundant Power Supply is composed of two plug-in Power Supply Units, normally
operating in a “load-sharing” mode but each capable of operating independently. It can
provide power for up to eight fully loaded chassis and replaces the Power Module (wall unit),
(SM514-A-PS, SM514-A-PS-E) in each of the eight chassis.
Each plug-in Power Supply Unit has its own voltage selection switch (115/230VAC), fuses,
and AC supply input. Connecting each Power Supply Unit to a different power line improves
