User's Manual

3
1. Transmitter Module:
The Gatekeeper Systems D-9000A-SMT Transmitter Module contains a 2.4GHz
transceivers used to send commands to the Gatekeeper Systems wheels and
communicate with Gatekeeper Athena wheel and module.
2. Transmitter Module details:
Table 1: Power Connector
Connector
Terminal
Description
1
HEARTBEAT, MAX current, 50mA
2
GND
3
VCC IN
4
GND
5
RS232 TX
6
RS232 RX
Internal F
Antenna
I/O
Connector
Power
Connector