Epson EPL-N1200 Service Manual - Page 24

INTERFACE SPECIFICATIONS, 3.1 Parallel Interfaces, Compatibility Mode Signal Timing

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General Description 1.3 INTERFACE SPECIFICATIONS The EPL-N1200 is equipped with the following external interfaces: s Parallel interface B s Parallel interface C s Serial interface on optional LocalTalk/Serial module s LocalTalk interface on optional LocalTalk/Serial module EPL-N1200 Service Manual 1.3.1 Parallel Interfaces There are two parallel interfaces: parallel interface B and parallel interface C. Each interface has his own connector. Parallel Interface B Interface specification complies with IEEE 1284-I. Operating modes: Compatibility (standard) and nibble (reverse) modes Transfer speed: APPROX. 400 KB/second (MAX.) Connector type: Amphenol or equivalent (IEEE 1284B - type connector) Parallel Interface C Interface specification complies with IEEE 1284-II. Operating modes: Compatibility (standard), nibble (reverse), and ECP modes Transfer speed: APPROX. 2MB/second in ECP mode (MAX.) Connector type: IEEE 1284C - type connector 1.3.1.1 Compatibility (Standard) Mode System: STROBE synchronization, 8-bit parallel data transfer Handshaking: BUSY and ACKNLG signals Applicable plug: 57-30360 (Amphenol or equivalent) Signal timing: See Figure 1-3. Signal description: See Table 1-8. 0.5 µs 0.5 µs (minimum) (minimum) DATA 1-8 STROBE VALID 0.5 µs (minimum) 0.5 µs (maximum) BUSY 0 s 0.5 or 5 µs (min.) (minimum) ACKNLG VALID 1 or 10 µs (typical) Figure 1-3. Compatibility Mode Signal Timing 1-12 Rev. A

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1.3 INTERFACE SPECIFICATIONS
The EPL-N1200 is equipped with the following external interfaces:
Parallel interface B
Parallel interface C
Serial interface on optional LocalTalk/Serial
module
LocalTalk interface on optional LocalTalk/Serial module
1.3.1 Parallel Interfaces
There are
two parallel interfaces: parallel interface B and parallel interface C. Each interface has
his own connector.
Parallel Interface B
Interface specification complies with IEEE 1284-I.
Operating modes:
Compatibility (standard) and nibble (reverse) modes
Transfer speed:
APPROX. 400 KB/second (MAX.)
Connector type:
Amphenol or equivalent (IEEE 1284B
- type connector)
Parallel Interface C
Interface specification complies with IEEE 1284-II.
Operating modes:
Compatibility (standard), nibble (reverse), and ECP modes
Transfer speed:
APPROX. 2MB/second in ECP mode (MAX.)
Connector type:
IEEE 1284C - type connector
1.3.1.1
Compatibility (Standard) Mode
System:
STROBE synchronization, 8-bit parallel data transfer
Handshaking:
BUSY and
ACKNLG signals
Applicable plug:
57-30360 (Amphenol
or
equivalent)
Signal timing:
See
Figure
1-3.
Signal description:
See
Table
1-8.
DATA 1-8
STROBE
BUSY
ACKNLG
VALID
VALID
0.5
µ
s
(minimum)
0.5
µ
s
(minimum)
0.5
µ
s (minimum)
0.5
µ
s (maximum)
1 or 10
µ
s
(typical)
0 s
(min.)
0.5 or 5
µs
(minimum)
Figure 1-3. Compatibility Mode Signal Timing
General Description
EPL-N1200 Service Manual
1-12
Rev. A