Maximize Performance with Optional Interface Modules These Multi-function Interface Modules (MIMs) provide a variety of expansion options that let you enhance router performance to optimize network operation. Customize your network to your business needs. * Provides 4 FXO ports for connection to a PABX * Facilitates scalable and secure network operation * Maximizes interface density and slot efficiency * For use in 3Com Router 5012, Router 5232, Router 5642 and Router 5682 Product Specifications * Ports: 4 * Connector: 4 x RJ-11 * Interface standard: subscriber line interface, ITU Q.552 * Dialing: DTMF * Bandwidth: 300 to 3400 Hz * Interface protection: ITU K.20 over-voltage and over-current * DSP: 4 channels Package Contents * Interface module This Product Supports... 3Com® Router 5012 Product * 3C13701 3Com ® Router 5682 Product * 3C13759 3Com ® Router 5232 Product * 3C13751 3Com ® Router 5642 Product * 3C13755