View source for Cisco 4-port and 8-port async/sync network modules




The 4-port (NM-4A/S) and 8-port (NM-8A/S) asynchronous/synchronous (async/sync) network modules provide async connectivity with speeds up to 115.2 kbps, and sync connectivity with speeds up to 128 kbps. These modules use the 60-pin "5-in-1" cables, similar to those used on the Cisco 2500 and Cisco 7000 series routers. 


==Product Numbers==

This section explains what the product numbers stand for.

* NM-4A/S—Four Port Async/Sync Network Module

* NM-8A/S—Eight Port Async/Sync Network Module

==Features==

Here are the features of the 4-port (NM-4A/S) and 8-port (NM-8A/S) asynchronous/synchronous (async/sync) network module:

*It has four or eight async/sync ports.

*It uses Cisco 60-pin "5-in-1" connectors (same as Cisco 2500 and Cisco 7000).

*It uses the same cabling as Cisco 2500 and Cisco 7000.

*The maximum speed is 115.2 kbps for async, 128 kbps for the sync external clock, and 125 kbps for the internal clock.

==Platform Support==

This table lists the platforms supported:
{|
|Cisco IOS® Software Support
|Cisco 2600, 2600XM
|Cisco 3620, 3640
|Cisco 3631
|Cisco 3660
|Cisco 2691, 3725, 3745
|-
|NM-4A/S
|all Cisco IOS versions
|all Cisco IOS versions
|all Cisco IOS versions
|all Cisco IOS versions
|all Cisco IOS versions
|-
|NM-8A/S
|all Cisco IOS versions
|all Cisco IOS versions
|all Cisco IOS versions
|all Cisco IOS versions
|all Cisco IOS versions
|}

''Note'': The Cisco IOS software releases provided are typically the minimum version required to support the platform, module, or feature in question. Use the Software Advisor (registered customers only) to choose appropriate software for your network device, match software features to Cisco IOS and CatOS releases, compare IOS releases, or find out which software releases support your hardware. 


[[Category:Cisco]]
[[Category:Cisco NM]]