UBI EasyCoder 501 – Service Manual
146
20. SERIAL INTERFACE BOARD, cont'd.
20.2
Straps
Communication Port "uart2:"
RS 232C:
There are no straps for controlling the RS 232C interface on
"uart2:".
Communication Port "uart3:"
RS 232C:
Strap fitted on P-3 between pin 1 – 2 (right and middle pins) selects
RS 232C.
20 mA Current Loop:
Strap fitted on P-3 between pin 2 – 3 (middle and left pins) selects
20 mA current loop.
Ex5V:
Ex5V (max. 200 mA) can be made available on pin 16 by
fitting a strap on P-6.
Be careful not to enable this option unintentionally, which may
cause harm to the connected terminal, computer or other device.
1
P3
2
3
P6
P-3
"uart2:"
P-6
"uart3:"
Содержание EasyCoder 501 SA
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