HP PCI Multiplexer Family Cabling, Diagnostics, and Troubleshooting Manual

Port to Device Cabling
Converter Cables
Chapter 4 55
NOTE J2489-60010 may be used in lieu of J3830-60010. J3830-60010 has two
nuts instead of screws and is in the unit of one instead of sixteen.
J3830-60010 replaces J4289-60010 as of May, 1998
Figure 4-13 RS-232 RJ-45 (J2488-60010) pinouts to HP proprietary RJ-45 pinouts