Micro Technic A-S • Denmark •
Tel. +45 6615 3000 • Fax +45 6615 3077
E-mail: support@micro-technic.com
Website: www.micro-technic.com
M
ICRONIX
PC/104
SERIAL INTERFACE
PV-
SERIES
4-P
ORT
RS232/RS422/RS485
M
ODULES
User Manual
&
Installation Guide
V
ERS.
1.04
DOC: M4801DM.DOC
Users Manual & Installation Guide
PV-
SERIES
4-P
ORT
RS232/RS422/RS485
Page 2 of 7
D
ESCRIPTION
Micronix PV-interfaces let you customise your system and optimise a combination of RS232, RS422 or RS485
data transmission. All signals are surge protected for industrial applications. The PV-modules plug into any
standard PC/104 bus interface.
With the advanced 16C550 UART or highspeed 16C650 UART (-H versions) with 16-byte FIFO, your
industrial PC can communicate with other computers or peripherals at high speeds.
Compatible to standard serial interfaces supported by DOS and Windows operating systems. Four ribbon
cables with DB-9 connectors are optional.
Non-stackthrough or stackthrough (S-versions) connectors are available.
F
EATURES AND SPECIFICATIONS
♦ Four channels of asynchronous serial communication
♦ Baud rate up to 115 Kbps or 460 Kbps (-H versions)
♦ 16C550 or 16C650 advanced UART with 16-byte FIFO
♦ Supports RS232 interface: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
♦ Complete RS-232 Modem control signals, except RI
♦ RTS used for data direction control
♦ Interrupt selectable (IRQ 3,4,5,7,9,10,11,12 or 15)
♦ Individually or shared interrupt
♦ I/O-address selectable from 248H to 3F8H
♦ Surge protection to ± 8 kV according to IEC1000-4-2
♦ Supported by DOS and Windows
♦ Power requirements: +5VDC, 50mA typ, +/- 12VDC, 50mA(except 5V-versions)
♦ Operating temp.: 0 - 60° C
♦ Storage temp.: -20 - 60° C
♦ Relative humidity: 0 - 90%, non-condensing
♦ Dimensions: 95 x 90 x 18 mm
♦ PC/104 Stackthrough connectors (S-versions)
♦ 5V-version for 5V-only systems
♦ Optional cables 10-pin header to DB-9, 20 cm
Users Manual & Installation Guide
PV-
SERIES
4-P
ORT
RS232/RS422/RS485
Page 3 of 7
M
ODEL SELECTION
PV - X X X X - H – S – 5V
Number of RS232 ports (0-4)
Number of RS485 ports, 2-wire (0-3)
Number of RS485 ports, 4-wire (0-1)
Number of RS422 ports (0-1)
0 = Standard, H = High-speed
0 = Non-stackthrough, S = Stackthrough
5V= do not require +/-12V
A
VAILABLE MODELS
Model no. Description/Type
PV-0301 /-H/-S 3xRS485 (2-wire) + 1xRS422
PV-0310 /-H /-S 3xRS485 (2-wire) + 1xRS485 (4-wire)
PV-1201 /-H /-S 1xRS232 + 2xRS485 (2-wire) + 1xRS422
PV-1210 /-H /-S 1xRS232 + 2xRS485 (2-wire) + 1xRS485 (4-wire)
PV-2002 /-H /-S 2xRS232 + 2xRS422
PV-2011 /-H /-S 2xRS232 + 1xRS485 (4-wire) + 1xRS422
PV-2101 /-H /-S 2xRS232 + 1xRS485 (2-wire) + 1xRS422
PV-2110 /-H /-S 2xRS232 + 1xRS485 (2-wire) + 1xRS485 (4-wire)
PV-3001 /-H /-S 3xRS232 + 1xRS422
PV-3010 /-H /-S 3xRS232 + 1xRS485 (4-wire)
PV-4000 /-H /-S 4xRS232
Port
Model A B C D
0301
⊗ ⊗ ⊗ #
0310
⊗ ⊗ ⊗
1201
• ⊗ ⊗ #
1210
• ⊗ ⊗
2002
• • # #
2011
• • #
2101
• • ⊗
2110
• • ⊗
3001
• • • #
3010
• • •
4000
• • • •
•: RS232 ⊗: RS485, 2-wire
#: RS422 : RS485, 4-wire
Users Manual & Installation Guide
PV-
SERIES
4-P
ORT
RS232/RS422/RS485
Page 4 of 7
I
NSTALLATION GUIDE
Please refer to the schematic outline on page 5.
P
RECAUTIONS TO
ESD
Please note, that the Micronix PV modules must be handled with respect to ESD (Electrostatic Discharge).
Electrostatic Discharge to the PV modules must be avoided.
Before removing the module from the protection bag, the user must be discharged using a grounded wrist
ribbon.
S
ETTING THE
I/O A
DDRESS
The I/O address for channel A through D is set by the corresponding rotary-switch.
The individual positions are printed on the PCB.
E
XAMPLE
Setting channel A to I/O address 2F8, turn rotary-switch labelled "A" to position "7".
S
ETTING THE INTERRUPT NUMBER (INDIVIDUALLY
)
The IRQ number for channel A through D, is set by the corresponding pin column array.
The individual positions are printed on the PCB.
E
XAMPLE
See IRQ select page 6.
S
ETTING THE INTERRUPT NUMBER (SHARED
)
If shared interrupt is used, the IRQ number for all four channels will be the same.
E
XAMPLE
See shared IRQ settings page 7.
S
ETTING THE BAUD RATE
The baud rate is set by the software application. Each port is compatible to a normal PC COM-port and should
be accessed accordingly. Operating systems and standard software applications have utilities for that.
For more sophisticated programming and specific control of handshake signals, please refer to a 16C550
manual. This manual can be ordered from a National Semiconductor representative.
H
IGH SPEED-VERSIONS: BAUD RATE NOTICE
The actual baud rate will be 4 times the baud rate set by the software.
5V
ONLY VERSIONS (5V
):
These versions do not require +/-12V from the PC/104 bus.
Users Manual & Installation Guide
PV-
SERIES
4-P
ORT
RS232/RS422/RS485
Page 5 of 7
S
CHEMATIC OUTLINE
1. DCD
2. RxD
3. TxD
4. DTR
5. GND
6. DSR
7. RTS
8. CTS
9. RI
RS232
IRQ S
ELECT
(Pin column array)
I/O A
DDRESS SELECT
(Rotary-switch)
RS485 (4),(2)
RS422
RS232
RS485 (2)
RS422
RS232
RS232
RS485(2)
RS232
RS485(2)
3. Tx-
4. Rx-
5. GND
8. Tx+
9. RX+
RS422
3. DATA-
4. RTS-
5. GND
8. DATA+
9. RTS+
RS485
Users Manual & Installation Guide
PV-
SERIES
4-P
ORT
RS232/RS422/RS485
Page 6 of 7
Individually IRQ settings :
CH. A = IRQ10
CH. B = IRQ5
CH. C = IRQ9
CH. D = IRQ15
Shared IRQ settings :
CH. A = IRQ5
CH. B = IRQ5
CH. C = IRQ5
CH. D = IRQ5
Important notice : It is NOT possible to combine individually and shared IRQ settings.
Users Manual & Installation Guide
PV-
SERIES
4-P
ORT
RS232/RS422/RS485
Page 7 of 7
O
PTIONAL CABLE, 20CM
RS/232
CONNECTOR
DSUB-9 male
rib422.dwg
5
4
3
2
1
6
7
9
8
GND
Rx+
RxTx+
Tx-
Not used
Leoco 2540S 10
10-way ribbon ca ble
RS/422
CONNECTOR
RS/485
CONNECTOR
Coding-key in this
position
Pin 1.
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