Direct Current (Dc) Power Interface (Optional); Dc Operation - Apply Power - Comtech EF Data CDM-760 Installation And Operation Manual

Rear Panel Connections
CDM-760 Advanced High-Speed Trunking Modem
3.3.3 48V Direct Current (DC) Power Interface (Optional)
3.3.3.1 DC Operation – Apply Power
To apply DC power to the unit (Figure 3-13), do these steps:
Step Task
1 Connect the user-supplied (+) and (–) DC power leads to their respective terminals.
Number 18 AWG minimum wires are recommended.
2
Connect the user-supplied DC power leads to the user power source.
3 Switch the unit ON.
Feature
1
2
3
Input Power
Input Voltage
Connector Type
Fuse Protection
Figure 3-12. DC Power Interface
Figure 3-13. Apply DC Power to the unit
3–16
Description
On / Off Switch
Power Terminal Block
Screw-in Fuse Holders / Receptacles
DC Power Specifications
48 watts (typical with TPC/LDPC Codec and CnC
module installed), 68 watts (max)
280 watts (typical TPC/LDPC Codec, CnC
module and 48 volt BUC [FUTURE] supply
installed), 300 watts (max)
43-60 VDC Nominal
36-60 VDC Maximum
Terminal Block
(2X) 5mm x 20mm Slow-blow type fuses:
Modem Fuse: 3Amp/250Volts
BUC Fuse: 6.3 Amp/250 Volts
Revision 4
MN-CDM760