Cisco Module 4p ISDN BRI f C2600-3600 NM-4B-S/T= Manual De Usuario
Los códigos de productos
NM-4B-S/T=
Four versions of ISDN BRI network modules are available. Each 4− and 8−port module has the option of an
S/T interface or an onboard NT1 for each port. Local static RAM (SRAM) is used for buffer descriptors and
input queues. The 4−port module cannot be field−upgraded to the 8−port module. When all eight BRI ports
run continuous data (144 kbps each) and 50−byte packets, the maximum performance possible is 5760 pps,
and an aggregate full−duplex data rate of 2.3 Mbps.
S/T interface or an onboard NT1 for each port. Local static RAM (SRAM) is used for buffer descriptors and
input queues. The 4−port module cannot be field−upgraded to the 8−port module. When all eight BRI ports
run continuous data (144 kbps each) and 50−byte packets, the maximum performance possible is 5760 pps,
and an aggregate full−duplex data rate of 2.3 Mbps.
Figure 1 The NM−8B−U
Product Numbers
Here are the product numbers of the various network modules:
Product
Number
Description
NM−4B−S/T
Four Port ISDN−BRI Network Module
NM−8B−S/T
Eight Port ISDN−BRI Network Module
NM−4B−U
Four Port ISDN−BRI with a built−in NT−1
Network Module
Network Module
NM−8B−U
Eight Port ISDN−BRI with a built−in NT−1
Network Module
Network Module
Features
4− and 8−Port ISDN BRI network modules:
Enable you to query the network module.
•
Have traps to monitor the network module.
•
Integrate with CiscoWorks and CiscoView management tools.
•
Support the ISDN MIB.
•
Support plain old telephone service (POTS) call redirection to internal digital modems.
•
Feature Support
4− and 8−Port ISDN BRI network modules:
Support four or eight ISDN BRI ports.
•
Do not allow the ISDN S−bus to be shared.
•
Cisco − Understanding 4− and 8−Port ISDN BRI Network Modules