The CDM-451 is an all digital DME. The triple channel scanning DME provides ARINC 429
outputs along with analog outputs for two displays or EFIS MFDs. The CDM-451
Transceiver is compatible with FMS Systems to include auto-tune operation. The third
output channel can also provide single DME output to the FMS for independent navigation
solution. The Receiver can be tuned via ARINC 429 bus using individual CVN-252 Nav
Control Displays, the Wulfsberg Series III RMS 555 Radio Management System, or with
Flight Management Systems.