JRC NJT5669 Series Instruction Manual page 20

6.2. Connecting Modem
The Unit is connected the modem.
6.2.1. Connecting Coaxical Cable.
The Unit receives the reference and the IF signal and is required to supply
+15 to +30 V DC power from the modem via coaxial cable.
When connecting the coaxial cable from the modem, follow the following
steps:
Step 1:
Step 2:
NJT5669/70/75/77 series Instruction Manual
Connect the coaxial cable with the N or F-type male connectors
to the coaxial connecter equipped with the Unit which is shown
in a figure below under 0.68 to 1.13 N・m torque.
Supplied the IF/Ref./DC Power via Coaxial Cable
Location of Coaxial Connector
Use self-amalgamating tape to seal connector and cable entry
points from the connector to the cable sheath.
Only input a voltage within the range indicated in specified
voltage.
DO operate at the input voltage of +15 to +30 V DC power at
the coaxial connecter on the Unit.
DO NOT input an IF signal over the range of +13 dBm
maximum and a reference signal within the range of -5 to +5
dBm.
IM-T5669 Rev.01
Page 20