I Bought a NM-8A/S, only that isn't operating. Do you know as i can raise connection to 256 Kbps?
you may check out if HWIC-8A/S-232 is helpfull? But max speed is only 256kbps
There is none of 8 ports. NM-4T has four ports.
Hope this helps, please rate post if it does!
Sorry, it supports only up to 128 kbps in sync mode.