User's Manual Part 5

ROI-S05749 OPERATING EQUIPMENT
2-13
Interface Signals (MODEM)
IF IN/OUT (TNC Female)
TX Frequency: 340 MHz
RX Frequency: 140 MHz
Power supply: −48
V
Impedance: 50 ohms
Connecting IF Cable length:
5D-FB: less than 150 m
8D-FB: less than 300 m
10D-FB: less than 350 m
G (Screw): Ground terminal
(5 mm square cable (more than 2.5 mm diameter
ca
ble) (AWG#10) is recommended to apply for the
frame ground. The proper press fix terminal tool
shall be used.)
SELV (Molex M5569-04A1,
4 pins) (DC IN)
Input Voltage: −48 V DC
(negative), + (positive, ground)
XIF IN/XIF OUT
(Receptacle IEC 169-13 (1.0/
2.3
))
Only used for XPIC system between two IDUs
XIF IN: IF signal of opposite polari
zation input.
(connect to XIF OUT of the other MODEM)
XIF OUT: IF signal for opposite polarization output.
(connect to XIF IN of the other MODEM)
Frequency: 140 MHz
Impedance: 75 ohms
XPIC CTRL
(D-Sub 15 pins, Serial Port)
Only used for XPIC system between two IDUs
(connect to XPIC CTRL of the other MODEM)
Automatic/Remote XPIC reset control signal inte
rface between mutual MODEM.