User Manual

77
ZQ630 User Guide
Communication Ports
RS-232C
Pin # Signal Name Type Description
1 CTS input Clear To Send from host
2 TXD output Transmit Data
3 RXD input Receive Data
4 DSR input Data Set Ready: low to high transition turns
printer on, high to low transition turns printer o󰀨
(if enabled)
5 GND Ground
6 DTR output Data Terminal Ready: set high when printer is
on. Switched 5V (300mA max)
7 N/A Do Not Use
8 RTS output Request To Send set high when printer is
ready to accept a command or data
9 N/A Do Not Use
10 N/A Do Not Use
11 N/A Do Not Use
12 N/A Do Not Use
13 N/A Do Not Use
14 N/A Do Not Use
8
2
5
3
1
4
10
12 14
13
11
9
7
6
Figure 35 • RS-232C Communication Port