Nortel Networks 1000 - Manual (Page 774)

774 NTAK09 1.5 Mb DTI/PRI card
The transmitter takes the binary data (dual unipolar) from the PCM
transceiver and produces bipolar pulses for transmission to the external
digital facility. The DS1 transmit equalizer enables the cabling distance
to extend from the card to the DSX-1 or LD-1. Equalizers are switch
selectable through dip-switches. The settings are shown in
Table 325
"NTAK09 switch settings" (page 774) .
Table 325
NTAK09 switch settings
Switch Setting
Distance to Digital Cross-Connect
1
DCH F/W
2
(LEN 0)
3
(LEN 1)
4
(LEN 2)
0 - 133 feet Off Off Off On
133 - 266 feet Off On On Off
266 - 399 feet Off Off On Off
399 - 533 feet Off On Off Off
533 - 655 feet Off Off Off Off
Receiver
The receiver extracts data and clock from an incoming data stream and
outputs clock and synchronized data. At worst case DSX-1 signal levels,
the line receiver operates correctly with up to 655 feet of ABAM cable
between the card and the external DS1 signal source.
The receiver extracts data and clock from an incoming data stream and
outputs clock and synchronized data. At worst case DSX-1 signal levels,
the line receiver operates correctly with up to 655 feet of ABAM cable
between the card and the external DS1 signal source.
The receiver extracts data and clock from an incoming data stream and
outputs clock and synchronized data. At worst case DSX-1 signal levels,
the line receiver operates correctly with up to 655 feet of ABAM cable
between the card and the external DS1 signal source.
Connector pinout
The connection to the external digital carrier is through a 15-position male
D-type connector. See
Table 326 "DS-1 line interface pinout for NTBK04
cable" (page 774) .
Table 326
DS-1 line interface pinout for NTBK04 cable
From 50-pin MDF
connector To DB-15 Signal name Description
pin 48 pin 1 T transmit tip to network
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.