Pin Front Panel Connector - RF Technology Eclipse Series Operation And Maintenance Manual

3 TRANSMITTER I/O CONNECTIONS
Function
dc power
Serial
Communications
600 Ω /HiZ Line
600 Ω /HiZ Line
Direct PTT input
T/R Relay driver
output
Sub-Audible Tone
Input
Table 3: Pin connections and explanations for the main 25-pin, D connector.
3.2

9 Pin Front Panel Connector

The female D-shell, 9 pin, front panel connector is an RS232 interface for serial
communications to a terminal, a terminal emulator, or to a computer. The pin
connections are described in table 4.
Function Pins
TXD 2 Transmit Data (Output)
RXD 3 Receive Data (Input)
RTS 8 Request To Send (Output)
CTS 7 Clear To Send (Input)
DTR 6 Data Terminal Ready(Output)
DSR 1 Data Set Ready (Input)
GND 5 GND
Table 4: Pin connections for the front panel 9 pin D connector.
The pinout for the connector has been chosen so that a straight-through BD9 male to
DB9 female cable can connect the transmitter to any male DB9 serial port on an IBM
PC compatible computer.
Note that for connection to a modem, a cross-over cable will be required.
RF Technology T50
Signal Pins
+28Vdc(in) 13, 25
0 Vdc 1, 14
+5Vdc(out) 17
+12Vdc(out) 15
SCLK 12
MOSI 6
CH_EN 18
PA_CS 24
SPARE_SEL 5
Line1+ 8
Line1- 19
Line2+ 10
Line2- 22
11
23
Tone+ 9
Tone- 21
Specification
3.2 9 Pin Front Panel Connector
Specification
+24 to 32 Vdc
Common Voltage
Output for external Logic(100mA)
Output for an external relay(120mA)
Serial Clock
Bi-directional Data Pin
Enables Channel Select Shift Register
Enables PA A/D chip
Spare Select (for future use)
Transformer Isolated Balanced 0dBm
Input
Transformer Isolated Balanced 0dBm
Input
Ground to key PTT
Open collector, 250mA /12V
>10k Ω , dc coupled
Pin name on IBM PC
RxD
TxD
CTS
RTS
DSR
DCD
GND
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