Codan Radio MT-4E Analog and P25 Digital - Maintenance Guide - Manual (Page 63)

MT-4E ANALOG & P25 DIGITAL RADIO SYSTEMS | MAINTENANCE GUIDE
Chapter 5: Codan Radio System Testing Page 55
Ensure that the receiver and transmitter are connected to the repeater controller via the RJ45 cables
on the front panel. In some systems, the receiver and transmitter may be connected directly together
using the RJ45 cables.
Figure 5-43: System Digital Duplex Check