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Please specify your question about 8 Port MD E1 Multiservice Module (1:1 protection capable) - Connector Type: (1) 50 PIN .05 CHAMP'- Integral CSU'- Protocols Supported: FR, CES, ATM, HDLC Passthru, IMA'- Any service any channel'- One 42-23N60036 cable per module required for protection, o *