Panasonic KX-P2130 Operating Instructions Manual page 66

Interfacing
66
SG ... SIGNAL GROUND
-The twisted pair return wires (pins 19-30) are connected to signal ground.
FG ... FRAME GROUND
_Frame ground is the same as chassis ground.
+5V
-This is for evaluation only.
It
should not be used to supply power for external equipment.
PRIME
-This input signal is normally high and goes low to reset the printer. It can be received anytime during
printer operation.
ERROR
-This output signal is normally high, and goes low when an error occurs.' An error condition can be caused
by:
1. a "Paper Out" condition
2. the printer is OFF LINE
3. an overload condition exists
SLCTIN
-This input signal is normally low, and goes high when you use the attached Setup program.
Timing Chart (When normal printing code is received)
DATAl-8
STB
r -
BUSY
ACK
Tl T2
~
I<-----
T1 ...... 0.5).1s (Min)
T2 ...... 0.5 ).Is (Min)
T3 ...... 0.5 ).Is (Min)
T4 ...... 5 ).IS (Max)
T3
-
T5
T5 ...... 1 ms or less when buffer is not full
1 s or less when buffer is full
Timing Diagram
I
I
T4 I<-