485 Loopback

[NGCLarry]

If I jumper pin 2(CTS+)  & 3(RTS+) of my 485 connector, I that good enough for my loopback ? 

[JÞB · Accepted solution]

DB-9 RS-422, RS-485 Loopback Connection
Connect Pins:

• 1 to 4 (Rx+ to Tx+)
• 2 to 3 (Rx- to Tx-)
• 6 to 9 (RTS+ to CTS+)
• 7 to 8 (RTS- to CTS-)

Pins marked in red are the data lines, Tx and Rx, and are necessary for the loopback and BERT testing. All other pins are for modem control signal tests and are not necessary to connect unless you wish to test those signals.

From Here - nice source

[NGCLarry]

Thanks.