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SHM-768K
Table 6-2. Controls, Indicators, and Connectors.
Item
Control, Indicator or Connector Function
1
Card Slots
Slots for installation of SHM-768K cards
(slot no. 1 located at the left-hand side).
Unused slots are closed with blank
panels.
2
Power Supply Module
Provides power to modules installed in
the enclosure.
3
POWER Switch
Turns the power supply ON/OFF.
4
PS-1 Indicator (DT power
Lights when Power Supply 1 (PS-1) is
supply only)
operating
5
PS-1/PS-2 Selector
Selects the active power supply.
(DT power supply only)
6
PS-2 Indicator
Lights when Power Supply 2 (PS-2) is
(DT power supply only)
operating.
7
Power Connector
Power connector with integral fuse.
8
Main Channel Connectors (J1) DB25 connectors for the module DTE
connection. For pinouts of available
interfaces, see Table 3-1. Alternatively,
use an interface adapter.
9
4-Wire Terminal Blocks (TB1) For connection of 4-wire lines. Each
modem card has a separate terminal-
block connector.
