Lexmark 2591+ - Serial Board Outputs (9 W and 24 W); USB Outputs (9 W and 24 W)

Connector locations 5-7
2580+, 2581+, 2590+, 2591+
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Serial board outputs (9w and 24w)
USB outputs (9w and 24w)
4LED
5 PE2
6 Signal Gnd
At connector J200
Pin # Output
1+5 V dc
2+5 V dc
3CTS
4DTS
5RXD
6RTS
7DSR
8TXD
9 Signal Gnd
10 SBSET
At connector J12
Pin # Output
1 +3.2 V dc
2DMNS
3DPLS
4 Signal Gnd
At connector J5
Pin # Output