(New) USB to DH485 adapter

[phuz 2]

We just used the last of our incentive dollars to buy a USB to DH+ adapater and USB to DH485 adapter. The DH+ one works great, and fast. The DH485 has an RJ45 port on the front, but I am not sure what cable to use. I used a regular patch cable, and it works, but its slow. I was wondering if the wires need to be crossed or if they should remain straight through. It just seemed slower than normal DH485 communication. Thanks.

[Mickey 71]

The proper cable is AB's 1747-C13. You should not use a ethernet patch cord for this as some devices have 24VDC on the RJ45's pin. See PDF below for a pin-out of the 1747-C13 cable. Probably not your problem with comm speed though. The UIC only operates at a baud rate of 19.2kb. DH_485_Cables_used_with_SLC_500_processors_and_the_1747AIC.pdf