Specifications

9
Power/Data Cable. Each radio modem is fitted with a cable for
easy connection to the ProMark3. The wiring diagram and pi-
nout are provided below.
NOTES: In the radio, pins 2 and 3 are shorted internally (pins
10 and 11 as well). The +5 V DC OUT signal (pin 1) is provid-
ed by the ProMark3 RTK to power the radio.
External Power Source. An external DC source (9 to 17 V DC)
can be used to power both the radio modem and the ProMark3
RTK unit and also charge the ProMark3’s internal battery. Us
-
ing an external power source is recommended to extend the
operating time of a ProMark3 RTK base.
In this configuration, keep the power/data cable connected
between the ProMark3 and the radio modem and add a two-
wire cable (not provided), also passing through the base of the
radio.
The additional cable should be connected to the screw termi-
nal block, inside the radio modem, according to the table be-
low.
Using another radio model. See Using Another Radio Model
on page 268.
Wire Color Signal Name Pin Number
White TX (Data) 6
Red +DC IN 11
[Braid] Ground 2
Yellow +5 V DC OUT 1
Blue RX (Data) 5
External
DC Source
Pin Number on Terminal Block
(see these numbers in the diagram above)
+ DC IN 10
- DC IN 3
[Braid]
Blue
White
Red
Contact Side View
(Connector
on ProMark3
side)
Yellow
Power/Data Cable
Screw Terminal Block
(Inside radio modem)
1110987654321