Nortel Communication Server 1000 Manual page 93

Unit 0 Clk Connectors
Two RJ11 connectors for connecting:
•
Digital trunk unit 0 recovered clock to primary or secondary reference
source on clock controller card 0.
•
Digital trunk unit 0 recovered clock to primary or secondary reference
source on clock controller card 1.
Unit 1 Clk Connectors
Two RJ11 connectors for connecting:
•
Digital trunk unit 1 recovered clock to primary or secondary reference
source on clock controller card 0.
•
Digital trunk unit 1 recovered clock to primary or secondary reference
source on clock controller card 1.
Connector J5 (TRK)
A 9 pin D-Type connector used to connect:
•
Digital trunk unit 0 receive and transmit Tip / Ring pairs.
•
Digital trunk unit 1 receive and transmit Tip / Ring pairs.
Connector J6 (DCH)
A 26 pin D-type connector is used to connect the DDP2 card to the
external D-channel handler.
System capacity and performance
Physical capacity
Each NT5D97AD DDP2 card occupies one slot on the network shelf. Each
card supports two digital trunk circuits and two network loops. The total
number of DDP2 cards per system is limited by the number of network
loops, physical capacity of the shelf, number of DTI2/PRI2 interfaces
allowed by the software and the range of DCH addresses.
D-Channel capacity
The software configuration for the NTAG54 DDCH supports D-channel
functionality only.
The system has a total capacity of 16 addresses (Device Addresses or
DNUM) that can be reserved for DCH card, or DDCH card. One exception
is DNUM 0 which is commonly assigned to the TTY terminal.
Copyright © 2007-2010 Nortel Networks. All Rights Reserved.
Nortel Communication Server 1000
DASS2 Fundamentals
NN43001-571 04.01 4 June 2010
NT5D97AD Dual-port DTI2/PRI2 card 93