Intermec EasyCoder F4 - Page 109

Intermec EasyCoder F4 – Installation & Operation Ed. 3108
Appendix 3 Interfaces
"uart3:" Serial Port
The communication ports "uart3:" uses a DB-25pin male connec-
tor.
Pin Signal Name Description
1 Not connected
2 TxD RS-232 Transmitter
3 RxD RS-232 Receiver
4 RTS RS-232 Request To Send
5 CTS RS-232 Clear To Send
6 DSR RS-232 Data Set Ready
7 GND Ground
8 Not connected
9 +20M1 +20 mA current loop
10 -20M1 -20 mA current loop
11 +TXD +TXD 20 mA current loop
12 -TXD -TXD 20 mA current loop
13 +20M2 +20 mA current loop
(printer active receiver)
14 -20M2 -20 mA current loop
(printer active receiver)
15 +RS422I +RS-422 Receive
16 +5V 5 Volt for external use (max. 200 mA)
1
17 -RS422I -RS-422 Receive
18 +RxD +TXD 20 mA current loop
19 +RS422O +RS-422 Transmit
20 DTR RS 232 Data Terminal Ready
21 -RS422O -RS-422 Transmit
22 RI RS-232 Ring Indicator
23 Shield Optional shield for RS-422
24 Not connected
25 -RxD -TXD 20 mA current loop
1
/. The external 5V is automatically switched off at overload.
Double Serial
Interface Board,
cont.
"uart3:"