Nt1R20 Ops Analog Line Card Installation; Nt5K02 Flexible Analog Line Card - Nortel Enterprise 1000 Reference Manual

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NT1R20 OPS analog line card installation

NT5K02 Flexible Analog Line Card

553-3023-211 Standard 1.00 June 2001
Analog line cards
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 Figure 53.
For units connected to loops of 460 to 2300 ohms, both jumper blocks for that
unit must have jumper straps installed. For loops that are 460 ohms or less,
jumper straps are not installed.
Insert the OPS card in its assigned slot. Cross-connect off-premise
telephones.
Figure 53
Set the jumpers
Jumper pin
Jumper block
The NT5K02 flexible analog line card provides an interface for up to 16
analog (500/2500-type) telephones equipped with either ground button recall
switches, high-voltage Message Waiting lamps, or low-voltage Message
Waiting LEDs. It can be installed in Slot 1, 2, and 3 of the Media Gateway,
and in Slot 7, 8, 9 and 10 of the Media Gateway Expansion.
Up to three analog line cards are supported in each Media Gateway. Up to
four analog line cards are supported in each Media Gateway Expansion.
The NT5K02 performs several functions, including:
• flexible transmission
• ground button operation
Jumper strap
553-CSE8346