Intermec EasyCoder 501 - Straps

177Intermec EasyCoder 501 – Service Manual Ed. 7
Chapter 23 Industrial Interface Board
23.2 Straps
Communication Port "uart3:"
RS-232:
There are no straps for the RS-232 interface on "uart3:".
External +5V:
External +5V ( max. 200 mA) can be made available on pin 16 by
fi tting a strap on P-1
1
.
IN/OUT Connector
In/Out port 201 to 204:
One relay for each port switches the OUT signal to high or low as
PORTOUT ON/OFF statements are executed in the program.
Four straps, P-2, P-6, P-7, and P-8, control the relation between
relay and output signal on output ports 201 to 204 respectively:
PORTOUT stmt Strap between pins OUT signal
PORTOUT (<nexp>) ON 1–2 (lower position) Open
PORTOUT (<nexp>) ON 2–3 (upper position) Closed
PORTOUT (<nexp>) OFF 1–2 (lower position) Closed
PORTOUT (<nexp>) OFF 2–3 (upper position) Open
1
/. Be careful not to enable the
external +5V unintentionally, since
it may cause harm to the con-
nected terminal, computer, or other
device.
P4
P2
P3
P5
P6P7P8
123123123123
P1
P-7
P-8
I/O connector
"uart3:"
P-1
P-2
P-6