User's Manual

05-4186A01-eNETL2TUV_Manual_RevD.doc
05-4186A01 Rev. D Page 5 of 7 2/17/2015
3 Interfaces
3.1 J101 Control Interface
The J101 Control Interface is intended to connect to the transceiver’s control interface and provides
keying and power control signals.
Table 1 – J101 Control Cable Pin Functions
Pin
Function
Pin 1
3 Vdc enable TX, low=off
Pin 2
0.7 Vdc (varies to set RF power)
Pin 3
Not used
Pin 4
Ground
3.2 J102 RF Output
J102 is a 50 Ohm Female Type N connector.
3.3 J103 RF Input
J103 is a 50 Ohm Female Type N connector.
3.4 J104 External/Internal Keying Jumper
J104 is a jumper block with 3 pins. Shorting pins 1 and 2 (EXT) enables an external transceiver to key
the amplifier via J101. Shorting pins 2 and 3 (INT) enables the amplifier’s internal power detector to
key the amplifier. Access to this jumper block is via a hole in the top cover.
3.5 R112 Power Control Adjustment
R112 is used to adjust the RF power output of the amplifier in both internal and external keying modes.
Turn the potentiometer clockwise for higher power and counterclockwise for lower power.