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Page 164 of 332 Chapter 12 — Installing the circuit cards
553-3021-209 Standard 3.00 April 2000
NT1R20 Off-Premise Station (OPS) analog line card
The OPS analog line card provides eight OPS lines. You can install this card
in slots 1 through 3 in the Main Chassis or slots 7 through 10 in the Chassis
Expander.
Procedure 18
OPS analog line card installation
1 Set the jumpers on the NT1R20 OPS card.
Each line interface unit on the card has two jumper blocks that are
used to select the proper loop current, depending on loop length. See
Table 33 on page 165 and Figure 46 on page 166.
For units connected to loops of 460 to 2300 ¾, both jumper blocks for
that unit must have jumper straps installed. For loops that are 460 ¾
or less, jumper straps are not installed.
Figure 45
Set the jumpers
2 Insert the OPS card in its assigned slot.
3 Cross connect off-premise telephones as described in
“Connecting off-premise telephones” on page 235.
Refer to Figure 47 on page 167 for cross connection information for the
OPS card.
—————————— End of Procedure ——————————
553-8346.EPS