FT638 – Digital Radio Box
4.Pin layout
4. Pin layout
Connectors MRT1 and MRT2 / PEI-IN
Connecton of TETRA/DMR digital radios
1
--- / CONS_TXD for IN/OUT version
2
--- / CONS_RXD for IN/OUT version
3
ON_SIG (output)
4
POWER (input)
5
AF_IN_A
6
AF_IN_B
7
AF_OUT_A
8
AF_OUT_B
9
RS232_DCD (input)
10
RS232_RXD (input)
11
RS232_TXD (output)
12
RS232_RTS (output)
13
RS232_CTS (input)
14
RS232_DTR (output)
15
GND
Connector MRT2 / PEI-Out (only for TETRA IN/OUT version)
Connecton of TETRA applicatons (audio + PEI-AT)
1
CONS_TXD (input to SRG3900)
2
CONS_RXD (output from SRG3900)
3
ON_SIG (input to SRG3900)
4
POWER (output from SRG3900)
5
AF_OUT_A
6
AF_OUT_B
7
AF_IN_A
8
AF_IN_B
9
RS232_DTR (output)
10
RS232_TXD (output)
11
RS232_RXD (input)
12
RS232_CTS (input)
13
RS232_RTS (output)
14
RS232_DCD (input)
15
GND
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FT638_eng (29.04.22)
