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 40290-60008 - Loopback connector - For 50-pin RS-422 connector - For testing all ports on the RS-422 ATP 37/M PC board Retail
HP J2482-60002 - EISA Mux 8-accesory kit - Includes one fanout cable with eight RJ45 RS-232 connectors, one RJ45 loopback male connector, and software license to use Retail
