Cisco 16-Port Async Network Module NM-16A
Cisco 16-Port Async Network ModuleNM-16A
The 16-port (NM-16A) and 32-port (NM-32A) asynchronous (async) network modules provide 16 or 32 EIA/TIA-232 (formerly know as RS-232) data terminal equipment (DTE) serial interfaces at speeds up to 134.4 kbps. These modules use the 68-pin OCTAL Cables such as the CAB-OCTAL-ASYNC= and CAB-OCTAL-MODEM
The NM-16A and NM-32A modules are often used to provide out of band connectivity to the console ports of other devices in a comm/terminal server setup.