User's Manual

48 QL 420 User’s Guide
Communications Port
Signal
Pin# Name Type Description
1 RXD input Receive Data
2 TXD output Transmit Data
3 CTS input Clear To Send from host
4RTS output Request To Send
set high when printer
is ready to accept command/data
5 GND Ground
6NC No Connect
7 DSR input Data Set Ready
low to high 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)
8
7
6
4
2
1
5
3
FIGURE 21 COMMUNICATIONS PORT
(8 pin Circular DIN)
continued on next page
Weight
w/ battery, 2.0 lbs. (.9 kg. )
excluding media
& wireless optons.
Temperature
Operating 5° to 122° F (-15° to 50° C)
Storage -13° to 158° F (-25° to 70° C) Range
Relative Humidity
Operation 10% to 80% (non-condensing)
Storage 10% to 90% (non-condensing)
Electrical Battery: 7.4V (nominal) Lithium-Ion
Chargers: External single battery charger Model LI72,
120-230 VAC depending on model selected.
External 4-bay charger Model UCLI72-4, 100-240
VAC