Nortel Networks 1000 - Manual (Page 924)

924 NTDK20 Small System Controller card
Security device
The NTDK20 SSC card in each Media Gateway must contain a
NTDK57DA Security device, a remote dongle (NT_Rem) which is keyed to
match the NTDK57AA Security device on the Call Server and a standard
dongle (NT_STD). This maintains the requirement of a single keycode
for each system. Refer to
Figure 261 "NTDK20 SSC card and expansion
daughterboard in the Call Server" (page 919) for the location of the device.
This security scheme provides the following:
•
enables the system to operate as a single system when all links are
up.
• enables the Media Gateway to continue operating with its existing
configuration in the event of a failure of the Call Server, or the failure of
the link to the Call Server from the Media Gateway.
• prevents users from configuring or using unauthorized TNs or features.
The Media Gateway security device provides the following capabilities for
the Media Gateway :
•
System software can be installed but no calls can be processed or
features activated until communication with the Call Server has been
established and a match between the security ID of the Call Server and
the Media Gateway has been confirmed.
•
System software can be upgraded.
Note: Local data dump, LD 43 commands, and LD 143 commands
are not permitted.
SDI ports
The NTDK20 SSC card in both the Call Server and the Media Gateways
contains three SDI ports used to connect on-site terminals or remote
terminals through a modem.
Table 396 "Default SDI port settings on the
NTDK20 SSC card" (page 924) shows the port default settings.
Table 396
Default SDI port settings on the NTDK20 SSC card
TTY Port Baud rate Data bits Stop bits Parity Use
0 Set by a DIP
switch
8 1 None MTC/SCH/
BUG
1 1200 8 1 None MTC/SCH/
BUG
2 1200 8 1 None MTC/SCH/
BUG
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.