Nortel Networks Circuit Card User Manual

 NT5D11 and NT5D14 Lineside T1 Interface cards

For the MMI terminal to be able to communicate to the lineside T1 card, the 
interface characteristics must be configured to the following:

•

Speed – 1200 or 2400 bps, depending on the setting of switch position 1 
of Switch 1

•

Character width – 8 bits

•

Parity bit – none

•

Stop bits – one

•

Software handshake (XON/XOFF) – off

Although much of the architecture and many of the features of the lineside T1 
card differ from the analog line card, the lineside T1 card has been designed 
to emulate an analog line card to the CS 1000 Release 4.5 software. Because 
of this, the lineside T1 card software configuration is performed the same as 
two adjacent analog line cards.

All 24 T1 channels carried by the lineside T1 card are individually configured 
using the Analog (500/2500-type) Telephone Administration program 
LD 10. Use Table 87 on 

 to determine the correct unit number and 

the NTP Software Input/Output: Administration (553-3001-311) for LD 10 
service change instructions.

The lineside T1 card circuitry routes 16 units (0-15) on the motherboard and 
eight (0-7) units on the daughterboard to 24 T1 channels.   The motherboard 
circuit card is located in the left card slot, and the daughterboard circuit card 
is located in right card slot. For example, if the lineside T1 card is installed 
into card slots 0 and 1, the motherboard would reside in card slot 0 and the 
daughterboard would reside in card slot 1. In order to configure the terminal 
equipment through the switch software, the T1 channel number must be