config sportster to a control logix

I've successful configured a 56k sportster to a SLC. Now I'm attempting to configure a sportster 56k to a control logix with no success. I'm guessing i need to change a command or maybe even a dip in the modem. I've tried all combinations full duplex, crc, bcc, duplicate detection enabled and disabled.

I've bought a radkit, but i dont think its worth the $. Any help with the settings would be appreciate. thanks in advance

I am not modem expert, last time I used it about 8 years ago, but the biggest difference between CLX and SLC is a Error checking:

by default SLC is CRC, Logix is BCC

Default Logix settings:
19200,N,1, Full Duplex BCC