NIM-4FXO-RF| Cisco 4-Ports FXO Network Interface Module for ISR 4000 series Cisco C3KX-FAN-23CFM It offers a reliable and

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NIM-4FXO-RF| Cisco 4-Ports FXO Network Interface Module for ISR 4000 series Cisco C3KX-FAN-23CFM It offers a reliable andThe Cisco NIM 4FXO is a remanufactured 4 port Universal FXO (Foreign Exchange Office) Network Interface Module. Designed for Cisco 4000 Series ISRs, it enables direct connection to analog public switched telephone network (PSTN) lines, supporting voice and fax services for branch office environments. Key Features: Four FXO Ports: Provides connectivity for up to four analog PSTN lines. Universal FXO: Compatible with a wide range of analog line types.