SM500A—Automatic Switching System
Black Box Corporation
10
990-000-0001-E8
2 Components
A standard Automatic Switching System SM500A consists of a Rack Mount Chassis, a
Power Supply/Control Card or Advanced Control Card, one or two Power Modules, and
selected Switching Interface Cards.
2.1 Rack Mount Chassis
The Rack Mount Chassis has 17 slots numbered 1 through 17 (refer to figure 2.2). A Power
Supply/Control Card or Advanced Control Card must be inserted into slot 17. Up to 16
Switching Interface Cards may be inserted into slots 1 through 16.
Model
Description
SM500A
Rack Mount Chassis with 17 slots—16 slots for Switching Interface Cards,
one slot for Power Supply/Control Card or Advanced Control Card. A
key-operated switch on the front panel enables/disables all local switching
functions. Two LEDs (PS1 and PS2) indicate power-on condition. If a Power
Module (SM514-A-PS or SM514-A-PS-E) is connected, PS1 will illuminate. If
an AC Redundant Power Supply (SM535A) or second Power Module is
connected, PS1 and PS2 will illuminate. If an outside voltage source,
-48VDC, is connected, PS1 will illuminate.
Figure 2.1. Front view of SM500A chassis.
