Interfacing
This information should be provided to the company from which you are purchasing the interface cable to ensure
the proper wiring of the cable.
Parallel Interfacing
A method of transferring data from a computer to a printer through a parallel interface is based on the Centronics
Standard.
Specifications:
e Data transfer speed:
1000 cps minimum
e Handshaking:
BUSY and ACK signals
e Synchronization:
External STROBE puls
e Connector type:
57-30360 (AMPHENOL) or
è Logic levels:
TTL (Transistor-Transistor-Logic)
equivalent
levels
e Cable:
Use a shielded cable 1.95 m
(6'5") or less in length.
18
1
An IEEE 1284-compatible
Sor acai
E
dt
parallel cable is recommended.
36
19
Parallel Interface Connector (printer side)
Timing Chart
(When normal printing code is received)
Output
Output
0.5 ps (minimum)
Ta sese 0.5 us (minimum)
TS P
0.5 us (minimum)
Approx. 4 ps
ERROR
i eis opinas
een
1 ms or less when buffer is not full
pw
me
fee eee
[=
PRIME |
| ERROR |
Ooo
Ee
ae
| SLCTIN |
>
o D
®
5
a
x
Serial Interfacing
Cable: Use a shielded cable 1.95 m (6'5") or less in
length.
[3 Z———————— 3
i
0000000000000)
60009000900000G"
S
25
Pin Configuration
Serial Intertace Connector (printer side)
41