Zebra Technologies UMAN-QLP-001 Manuel D’Utilisation
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70
QL Plus Series User Guide
Communications Ports
RS-232C
Pin#
Signal Name
Type
Description
1
RXD
input
Receive Data
2
TXD
output
Transmit Data
3
CTS
input
Clear To Send from host
4
RTS
output
Request To Send set high when
printer is ready to accept a
command or data
printer is ready to accept a
command or data
5
GND
Ground
6
NC
No Connect
7
DSR
input
Data Set Ready: low to high
transition turns printer on, high to
low transition turns printer off (if
enabled)
transition turns printer on, high to
low transition turns printer off (if
enabled)
8
DTR
output
Data Terminal Ready: set high when
printer is on.
Set to battery voltage for “S”
versions (compatible with Symbol™
PIM)
printer is on.
Set to battery voltage for “S”
versions (compatible with Symbol™
PIM)
8
7
6
4
2
1
5
3
Figure 27: RS-232C Communications Port (8 pin Circular DIN)