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Device
and operation
CPC307
C P C 3 0 7 U s e r M a n u a l
56
© 2 0 2 2 F a s t w e l v . 0 0 6
Figure 4.24. Numbering pins of the XP17 connector
4.3.11 Printer Parallel Port (LPT)
The LPT1 parallel port operates in SPP, EPP, ECP mode and has the standard PC/AT standard
PC/AT base addresses. Base address and interrupt line selection for the LPT1 port is carried out in
the BIOS Setup.
The interface is routed to the part of the XP12 connector (IDC2-20, 2-row male connector with a
pitch of 2 mm).
Pin assignment of the XP12 connector related to the LPT interface is shown in Table 4.21.
The module has a Leotronics 2073-3442 connector.
The recommended mating part is Leotronics 2040-3442 (ribbon cable press-on socket) or
Leotronics 2022-2442 (socket) and 2023-2000 set of contacts.
Attention!
The +5 V power supply circuit combines homonymous contacts of the XS1 (PCI-
104), XS2 (PC-104), and XP22 (additional power connector) connectors and is
designed for module's power supply. The +5 V power supply outputs are
protected by a 0.5 A fuse. For connected external modules, the recommended
current consumption value is not more than 0.4 A. It is not recommended to connect power from
interface connectors to more than one external module in order not to overload the power supply
circuits of the CPU module.
Table 4.21. Pin assignment of the XP12 for connection of the LPT1 port
Pin
Signal
Pin
Signal
1
STB#
2
AFD#
3
PD0
4
ERR#
5
PD1
6
INIT#
7
PD2
8
SLIN#
9
PD3
10
GND
11
PD4
12
GND
13
PD5
14
GND
15
PD6
16
GND
17
PD7
18
GND
19
ACK#
20
GND