LX-105O+
Sewice Manual General Description
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Table 1-6. Connector Pin Assignments

and

Signal Functions (Cont.)

Pin No.
Signal Name
1/0
Description
This signal indicates whether paper is available in the
12
PE
o
printer or not. A HIGH level indicates a no paper
condition.
13
SLCT
o
pulled up to +5V though
3.3KQ
resistor in the
print,er.
,
If this signal is set to LOW, the printer automatically
14
AUTO FEED XT
1
performs one line feed upon receipt of a CR (carriage
return) code.
15
NC
Not
USSd.
16
GND Signal ground
17
CHASSIS
GND
-
Chassis ground.
18
NC .
Not
USSd.
19-30
GND Twisted-pair return signal ground.
31
INIT
I
If this signal goes LOW, the printer is initialized. The
pulse width of this signal must be
50p.s
or more.
This signal goes LOW if the printer:
32
ERROR
o
-
has a fatal error.
- runs out of paper.
- off line.
33
GND Signal ground.
34
NC
Not
Used
35 +5V Pulled up to +5 V through 3.3
KQ
resistor in the printer.
36
SLCT
IN
I
The
DC1/DC3
code is only valid when this signal is
HIGH.
Notes:
A// interface conditions are based on
7ZL
/eve/s. Both the rise
andfa//
times of all signals
must be
/ess
than
0.2 p.s.
The AUTO FEED-XT signal can be set LOW by DIP
sw”tch
2-4.
The SELECT IN signal can be set LOW by jumper 1.

1.3.2 Optional Interface #8143

The
LX-105O+
can use the non-intelligent serial interface board #8143.
Tyep:
RS-232C
or current loop
Synchronization: Asynchronous start-stop system
Start bit: 1 bit
Stop bit: 1 bit or more
Data length: 7 or 8 bits
Parity:
Odd, Even or none
X-ON/X-OFF or DTR control
75,110,134.5,150,200, 300,600,1200,1800,2400, 4800, and 9600
Protocol:
Transfer speed:
Rev.
A1-0