Tally Dascom 2810, Руководство пользователя

Страница: 159 / 168

Options and accessories User Guide
Parallel interface (optional)
The bidirectional parallel interface offers the so called “nibble” mode of the
IEEE1284 interface norm. This enables installation in accordance with Windows
“Plug & Play”.
The standard parallel interface is able to transfer data at a speed of max. 30,000
bytes per second. When the receiving buffer is full, the data input is blocked until
the data buffer is empty. This guarantees data transmission in blocks of 1 KB.
Connector assignment
Printer–PC Signal
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19–30
31
32
33
34–35
36 ←
←
←
←
←
←
←
←
←
→
↔
↔
↔
↔
–
–
–
–
←
↔
–
←
STROBE (active low)
DATA 1
DATA 2
DATA 3
DATA 4
DATA 5
DATA 6
DATA 7
DATA 8
ACK (active low)
BUSY
PAPER EMPTY (PE)
SELECT
AUTO FEED (active low)
not used
SIGNAL GROUND
CHASSIS GROUND
5 V (Imax = 500 mA)
SIGNAL GROUND
INIT (active low)
ERROR (active low)
SIGNAL GROUND
not used
SELECT IN
Transmission length: max. 2,0 m
160