Intermec CK31 User Manual page 163

Appendix A — Specifications
Pin Assignments for the Serial Port
Pin Signal Name
1 GND
2 VCC_EXT (5V)
3 TXD
4 RTS
5 DTR
6 RXD
7 CD
8 CTS
9 DSR
10 VIDEO
11 SOS
12 TETH_SCAN
13 GND
14 GND
15 TRIGGER
16 LASEN
17 BEEP
18 GOODREAD
19 VBUS
20 UDC-
21 UDC+
22 TX+
23 TX-
24 RX+
25 RX-
26 GND
146
I/O to
Terminal Description
Ground
O External 5V @ 500 mA maximum output
O RS-232 TXD
O RS-232 RTS
O RS-232 DTR
I RS-232 RXD
I RS-232 DCD (ActiveSync wakeup)
I RS-232 CTS
I RS-232 DSR
I DBP from tethered undecoded scanner
I Start of scan from tethered undecoded scanner
Active low input used to indicate an external
I
scanner connection
Ground
Ground
I Trigger input from tethered undecoded scanner
O Laser enable output to tethered undecoded scanner
O Beep output to tethered undecoded scanner
O Good Read output to tethered undecoded scanner
I USB Wake-up (5V power from USB host)
I/O USB DATA – (Client)
I/O USB DATA + (Client)
O Ethernet TPETXP
O Ethernet TPETXN
I Ethernet TPERXP
I Ethernet TPERXN
Ground
CK31 Handheld Computer User's Manual