Nortel Networks 553-3001-211 manual Cabling the lineside T1 card

NT5D11 and NT5D14 Lineside T1 Interface cards Page 201 of 894

Cabling the lineside T1 card

After setting the dip switches and installing the lineside T1 card into the selected card slots, the lineside T1 card is ready to be cabled to the CPE or CSU equipment. Connections can also be made to the MMI terminal or modem (optional), an external alarm (optional), and other lineside T1 cards for daisy-chain use of the MMI terminal (optional).

The lineside T1 card is cabled from its backplane connector through connections from the motherboard circuit card only (no cable connections are made from the daughterboard circuit card) to the input/output (I/O) panel on the rear of the IPE module. The connections from the lineside T1 card to the I/O panel are made with the NT8D81AA Tip and Ring cables provided with the IPE module.

Cabling from the I/O panel with the NT5D13AA lineside T1 I/O cable

Usually, the I/O panel is connected to the T1 link and other external devices through the NT5D13AA lineside T1 I/O cable. See Figure 29 on page 202. This cable consists of a 25-pair amphenol connector (P1) on one end which plugs into the I/O panel. The other end has 4 connectors:

1a DB15 male connector (P2) which plugs into the T1 line

2a DB9 male connector (P3) which plugs into an external alarm system

3a second DB9 male connector (P5) which connects to an MMI terminal or modem

4a DB9 female connector (P4) that connects to the next lineside T1 card’s P4 connector for MMI daisy chaining

Cabling from the I/O panel at the Main Distribution Frame

All lineside T1 connections can be made at the main distribution frame (MDF) if it is preferred to not use the NT5D13AA lineside T1 I/O cable at the I/O panel.

Circuit Card Description and Installation