ADTRAN FSU 5622 ESP Card Type Frame Relay Unit, DSU/CSU Chip Set Unidentified I/O Options 25-pin DTE ports (2), DBU interface module, Voice interface module, Control port (RJ-45), Dedicated network port (RJ-45), power Maximum Data Rate 56Kbps ISDN Rate 64Kbps ISDN Modulation Protocol HDLC, PPP Data Bus External [Image] CONNECTIONS Function Label Function Label Switched network port CN1 25-pin DTE port 1 CN6 (RJ-48) Telephone line (RJ-11) CN2 25-pin DTE port 2 CN7 Telephone line (RJ-11) CN3 Power CN8 Network port (RJ-45) CN4 Power button SW1 VT 100 terminal port CN5 (RJ-45) Note: The DBU interface module (CN1) may support a switched 56K interface via RJ-48 connector (shown), V.34 interface via RJ-11 connector, or ISDN interface via RJ-11 connector. The voice interface module (CN2, CN3) is available with Dual FXS, Dual FXO or Dual E&M signaling voice support. DIAGNOSTIC LED(S) LED Color Status Condition TD1 Unidentified On DTE port 1 is transmitting data TD1 Unidentified Off DTE port 1 is not transmitting data RD1 Unidentified On DTE port 1 is receiving data RD1 Unidentified Off DTE port 1 is not receiving data TD2 Unidentified On DTE port 2 is transmitting data TD2 Unidentified Off DTE port 2 is not transmitting data RD2 Unidentified On DTE port 2 is receiving data RD2 Unidentified Off DTE port 2 is not receiving data TDN Unidentified On Data is being transmitted on network port TDN Unidentified Off Data is not being transmitted on network port RDN Unidentified On Data is being received on network port RDN Unidentified Off Data is not being received on network port ALM Unidentified On Unit is detecting an open loop, loss of synchronization, OOS/OOF, or loss of network frame relay signal alarm condition or unit is in test mode ALM Unidentified Off Alarm condition not detected on network. Unit not conducting a test