Tally T2265 SprintPro, Maintenance Manual

Page: 44 / 178

3.3.3.2
Shared Interface
Your printer can be configured in such a way, so that it uses only one interface or
both alternatively. If only one interface is used, this is only monitored by the printer.
If the printer is configured in such a way that both interfaces are used simultaneously,
it alternately accesses the interfaces to see whether there are any incoming data. If
the printer recognises a signal, it switches to the corresponding interface and sends
the “ACTIVE” signal to the other one. After data transmission has been completed,
the printer remains assigned to the interface for as certain period of time (hold time:
30 s). After this period has elapsed, the printer clears the buffer and the procedure
begins anew. If after this the current position is not at Top of Form a Form Feed will
be carried out.
CX
The parallel section is controlled by the main logic, only I/O Drivers (7407, 74244) are
necessary. Please see also section 3.3.3.1 “General Information”.
RS232C / V 24
The serial part is controlled by the main logic only I/O Drivers (L 232 50P) are
necessary. They convert 5 V Input signals to RS232 Standard voltage (-12/+12 V).
Several jumpers are prepared to customize the interface.
9
X6
8
7
6
5
4
3
1
10
11
2
9
8
7
6
5
4
3
1
2
E GND
CTS
RTS
DSR
GND
DTR (READY)
TXD
RXD
Serial Interface
36
35
34
33
32
31
28
27
26
25
24
23
22
21
20
19
17
18
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
30
29
GND
FAULTNX
PRIMENX
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
VCCX
GND
SELX
STROBEN
PEX
BUSYX
DONENX
D8
D7
D6
D4
D3
D2
D1
D5
GND
37
38
CASSIS
C1
100N
63V
M
62130
B2
R4 52050
2K2 0 25W J
X2
Parallel
Interface (cx)
Electronic Functions Functional Description
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