SMC Networks 1232 Series - page 63

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63
CPU HOST COMPUTER
VP adjustment
(this end only)
or
RTS
CTS
DTR
RI
= short circuit
Short ( )for using VP mode with SERIAL1
Short ( ) for using VP mode with SERIAL2
RTS1 CTS1
RTS2 CTS2
with or with
with or with
DTR1 RI1
DTR2 RI2
SERIAL PORT 1
PARALLEL PORT
SERIAL PORT 2
VP mode with Parallel DOESN’T NEED ANY SHORTs
Serial VP cable (*)
(*) This VP cables must be made observing the
connections explained in the following tables
Parallel VP cable (*)
Figure 23. Completing the VP connection
Table 22. Serial1 and 2 VP cable connections
PC/104 serial interface HOST PC serial interface
J5 SERIAL1
PIN Nr. DB25 PIN Nr. DB9 PIN Nr. Signal Function Signal DB25 PIN Nr. DB9 PIN Nr.
3 3 2 RX Receive Data TX 2 3
5 2 3 TX Transmit data RX 3 2
9, 10 7 5 GND Signal Ground GND 7 5
For VP mode connect RTS1 with CTS1, or DTR1 with RI1.
Pins not included in the table above are not connected
Table 23. Parallel VP cable connections
From PC/104
Parallel connector VP2000 Cable To Host Computer
J5 PARALLEL
PIN Nr. DB25 PIN Nr. Signal Signal DB25 PIN Nr.
1 1 STB#* ACK#* 10
2 14 AFD# BSY 11
3,5,7,9,11,13,15,17 2..9 PD#* PD#* 2..9
6 16 INIT#* PE 12
8 17 SLIN#* SLCT 13
19 10 ACK#* STB#* 1
21 11 BSY AFD# 14
23 12 PE INIT#* 16
25 13 SLCT SLIN#* 17
Parallel
port