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Expansion module - expansion slot - ISDN PRI - 2 ports - E-1 - refurbished
PA-2CE1/PRI-75 (unbalanced 75-ohm) provides up to two channelized E1 interfaces to connect to channel service units (CSUs), and can transmit and receive data bidirectionally at the E1 rate of 2.048 Mbps. The interface uses a 15-pin, D-shell receptacle. The PA-2CE1/PRI-75 uses G.703 serial interface cables.
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