Procedures - Nortel 1000 Installation And Commissioning Manual

CPU capacity
Using a NT512 DDP card instead of DTI/PRI cards does not increase
the load on the system CPU. The DDP replaces an ENET card and two
DTI/PRI cards, it emulates the ENET card and the overall CPU capacity is
not impacted by usage of DDP card instead of a DTI/PRI card.
Power requirements
Table 17 "DDP power requirements" (page 65)
for the DDP card.
Table 17
DDP power requirements
+5V
+12V
-12V
Total Power (Maximum)
Testability and diagnostics
The DDP card supports all current QPC720 testing and maintenance
functions through the following procedures:
•
•
•
•
NT5D12 Cable requirements
This section lists the types of cable used and the lengths required for
internal and external NT5D12 DDP connections.
Copyright © 2003-2007, Nortel Networks
.
Voltage
Backplane
Backplane
Backplane
Self test upon power up or reset;
Signaling test performed in the LD 30;
Loopback tests, self tests, and continuity tests performed by LD 60 and
LD 45;
The D-Channel (MSDL, DCHI, DDCH) maintenance is supported by
LD 96.
Note 1: No additional cabling is required for nB+D configurations.
Multiple DDPs and the D-channel are associated through software in
LD 17.
Note 2: A detailed discussion of each type of DDP cable listed below
follows.
Nortel Communication Server 1000
ISDN Primary Rate Interface Installation and Commissioning
NN43001-301 02.03 Standard
Release 5.5 7 December 2007
Source
DDP (without
NTBK51AA)
3A
25mA
25mA
15.6W
NT5D12 Dual-port DTI/PRI 65
lists the power requirements
Current
DDP (with
NTBK51AA)
3.8A
75mA
75mA
20.8W