HP 5061-2556 - WAN link test cable - 62-pin (M) to 62-pin (M), 5.0m (16ft) long - For WAN port to WAN port connection (for testing purposes) 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 28606-63001 - WAN link interface cable - 62-pin (M) to 15-pin (M) - 5.0m (16.4ft) long - Connects the router to an X.21 interface (J2952A) Retail
HP 28606-63005 - WAN link interface cable - 62-pin (M) to 37-pin (M) - 5.0m (16.4ft) long - Connects the router to an RS-422/449 interface (J2953A) Retail