4.4.4- PC parallel interface connection
Communications cable Ref. CENTRONICS-7
HOST
MALE DB25
STB
1
2
3
4
5
6
7
8
9
ACK
10
BUSY
11
12
SELECT
13
AUTOFEED
14
ERR
15
INIT
16
SELECTIN
17
GND
18/25
Shield to chassis
NOTES:
1) Same configuration in the printer and in the host system should be set.
2) Communication protocol should be set properly so that the transmitted data can be received
without errors.
3) The 'n' prefix used before a signal name means that they are active in '0' logic level. If the host
system does not provide any of the signal lines mentioned above, both communication types
could fail.
4) It is recommended to use twisted pair cables (signal/ground), with the return sides connected to
the system signal ground level.
5) Do not ignore the nACK and BUSY signals during data transmissions. An attempt to transmit
data without nACK or BUSY control signals might cause lost data.
6) The interface cables should have the minimum required possible length (maximum
recommended length: 2 m).
4.5- USB INTERFACE
The EPC1200 USB interface has the following general features:
•
USB specification
•
Transfer type
•
Maximum receive/transmit endpoint size
•
Current consumption from USB bus
EPC1200
Housing:PHDR-24VS (JST)
Contact: SPHD-001T-P0.5
1
D0
2
D1
3
D2
4
D3
5
D4
6
D5
7
D6
8
D7
9
10
11
PE
12
14
18
13
17
16
23/24
EPC1200 SERIES OPERATION MANUAL
Fig. 12. - PC parallel cable
USB 1.1 (12MHz full speed)
Bulk
64 bytes
2mA max.
17/56
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