Printer User Manual

B - 2
• Connector Pin Arrangement
(As viewed from the cable side)
4) Signal level
Differential output : ±5V
Differential input : ±7V
5) Interface circuit
a) Receiving circuit
+
-
INPUT
DIFFERENTIAL OUTPUT
ENABLE
26LS30 or equivalent
b) Transmitting circuit
OUTPUT
DIFFERENTIAL
INPUT
26LS32 or equivalent
+
-
6) Receive margin
7) Communication protocol
• LocalTalk I/F
LocalTalk protocol
• RS422 I/F
X-ON/X-OFF protocol
876
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