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SmartSet Technical Reference Manual—Addendum for the E281-2310 Controller
Observe polarity when connecting the power leads to the power supply. Reversing
polarity may damage the controller.
Serial Connections
The E281-2310 controller operates at standard RS232C levels. The serial port
connector, P2, is a 2x5 header with pins on 0.100" centers. It is configured so a
ribbon cable and commonly available insulation displacement connectors (IDCs)
may be used.
Figure 3. P2 Serial Connector Pin Positions, End View
P4 Pins
Signal
1
+Pwr
2
PwrCom
3
N/C
4
PwrCom
5
LED Remote External LED driver
6
7
N/C
8
Chassis
9
-Reset
10
N/C
Function
Supply voltage positive
Supply voltage negative (tied to pin 4)
Supply voltage negative (tied to pin 2)
Key
Frame ground connection
Open collector input: open = normal
operation; short to PwrCom = hardware
reset.
CAUTION
9
7
5
3
1
·
·
·
·
·
X
·
·
·
·
10
8
6
4
2
3
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