TB7100 Installation Guide Connections 25
© Tait Electronics Limited March 2006
2.2.2 SI Board Connectors
DC Power
Connectors
The two DC power connectors (J102 and J103) on the SI board are heavy-
duty M4 screw terminals. J102 (if fitted) accepts power from the internal AC
power supply unit. J103 distributes the DC power to the transmitter and the
receiver.
System Interface
Connector to
Transmitter
The system interface connector (J101) to the transmitter is a 16-way surface-
mounted connector.
Pin Signal Name Signal Type Notes
1 Tx and Rx 13.8VDC J102 :input
J103: output
2 Tx and Rx ground J102 :input
J103: output
external view
Pin Signal Name Signal Type Notes
1 TX_AUX_GPIO7 output Tx key signal
2 TX_AUX_GPIO6 bidirectional digital input/output
3 TX_AUX_GPIO5 bidirectional digital input/output
4 TX_AUX_GPIO4 bidirectional digital input/output
5 TX_AUX_RXD input data
6 TX_AUX_TXD output data
7 TX_AUX_GPI3 input digital input
8 TX_AUX_GPI1 input digital input
9 TX_AUX_GPI2 input digital input
10 TX_AUD_TAP_OUT no connection
11 TX_RSSI no connection
12 TX_MIC_AUD output
13 TX_AUD_TAP_IN output Tx audio
14 TX_GND ground ground
15 TX_13V8 no connection
16 N/C no connection
external view
12
1615
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