Comtech EF Data CDM-750 - Manual (Page 64)

CDM-750 Advanced High-Speed Trunking Modem Revision 2
Rear Panel Connections MN-CDM750
3–18
3.3.3.1 DC Operation – Applying Power
Figure 3-11. Applying DC Power to the CDM-750
To apply DC power to the CDM‐750, follow these steps (Figure 3‐11):
• First, connect the user‐supplied (+) and (–) DC power leads to their respective terminals.
Number 18 AWG minimum wires are recommended.
• Then, connect the user‐supplied DC power leads to the power source.
• Finally, switch the unit ON.