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Cisco
Cisco NIM-16A 4 Channel Async Serial interface Expansion Module for ISR4000
Cisco NIM-16A 4 Channel Async Serial interface Expansion Module for ISR4000
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DESCRIPTION
The Cisco NIM-16A is a 16-port asynchronous serial Network Interface Module designed for Cisco ISR 4000 Series routers. It enables high-density serial connectivity, ideal for legacy device integration, out-of-band management, and console server applications in enterprise, industrial, and governmental networks. Supporting both RS-232 and software-configurable protocols, the module delivers reliable and flexible serial communication over modular ISR platforms.
TECHNICAL SPECIFICATIONS
Model: NIM-16A
Ports: 16 asynchronous serial ports
Interface: High-density 68-pin SCSI-type connector
Signaling: RS-232 (with optional RS-485/RS-422 via external adapters)
Compatibility: Cisco ISR 4321, 4331, 4351, 4431, 4451
Cable Type: CAB-HD68-ASYNC (required, sold separately)
Baud Rate: Up to 230.4 kbps per port
Form Factor: NIM (Network Interface Module)
Power: Supplied by host router
Mounting: Internal to ISR router chassis
Use Cases: Legacy device integration, console access, serial terminal servers
