HP 40290-60007 - Loopback connector - For 50-pin RS-232C connector - For testing all ports on the RS-232C ATP 37/M PC board Retail
HP 28606-63006 - WAN link interface cable - 62-pin (M) to 25-pin (M) - 5.0m (16.4ft) long - Connects the router to an RS-232C interface (J2951A) Retail
HP 30466-60001 - ATP interface assembly - Includes upper and lower connector boards (Each with three 3 pin RS-232C connectors) - Mounts to rear panel - ATP Interface Assembly - Includes Upper and Lower Connector Boards (Each with Three 3 Pin RS-232C Retail
