FT638 – Digital Radio Box
4.Pin layout
Connector COM
Connecton of additonal PEI-AT partcipants (>> MRT1)
1
---
2
TXD (output)
3
RXD (input)
4
---
5
GND
6
---
7
CTS (input)
8
RTS (output)
9
---
Connector RS232
Connecton of additonal PEI-AT partcipants (for MRT2 if STD-Version, for MRT1 if I/O-Version) and
programmab le I/Os
1.......8
1
TXD (output)
2
RXD (input)
3
GND
4
I/O 0
5
I/O 1
6
I/O 2
7
I/O 3
8
I/O 4
Connectors A1 and A2
Analogous mult-wire connecton. (A1 >> MRT1, A2 >> MRT2)
1.......8
1
AF_OUT_A
2
AF_OUT_B
3
SQL (output)
4
GND
5
BUSY (o12V output)
6
PTT (input)
7
AF_IN_A
8
AF_IN_B
-8-
FT638_eng (29.04.22)
