參數(shù)資料
型號(hào)： PC-COM4
英文描述： PC(ISA)BUS I/O CARD
中文描述： 電腦（ISA）總線的I / O卡
文件頁(yè)數(shù)： 1/20頁(yè)
文件大小： 492K
代理商： PC-COM4
CONTROL SYSTEMS
PC-COM4
22192-09197-000-000
J606 PC-COM4
Page 1
Introduction
The PC-COM4 is an 8 or 16-bit ISABUS module providing up to four 16c550 type serial
asynchronous communications channels: two of non-isolated RS232 and two channels that
can be configured as either non-isolated RS232 or optically isolated RS422 or RS485. A
depopulated version of the PC- COM4 (PC-COM4-RS232) is available, which does not contain
the RS422/485 circuitry.
Features
4 off 16C550 compatible UART channels. (Referred to as channels A, B, C & D)
2 off opto-isolated RS422/485 ports, or full feature RS232 ports. (channels A & B)
2 off full feature RS232 ports. (channels C & D)
Baud rates up to 115.2kbaud supported.
+5V only operation.
Configurable as standard PC AT COM1-4 or anywhere in I/O address range 000-3FFh
Each channel is link selectable IRQ of 3, 4, 5, 7, 9, 10, 11, 12 or 15.
Combined interrupt option for any channel combination to IRQ 3, 4, 5, 7, 9, 10, 11, 12, or 15.
ISABUS 16 bit interface (but can be used in 8-bit slot if IRQ10,11, 12 and 15 are not required).
Board access LED.
Isolation:
Channel A to Channel B
Channels A or B to Channels C or D
Channels A or B to ISABUS Ground
Channels A or B to Chassis Ground
Power Requirements:
120mA (typ) at +5V DC
Temperature Range:
0
°
C to +70
°
C operating.
- 40
°
C to +125
°
C storage.
MTBF 181, 152 hours (PC-COM4)
232, 837 hours (PC-COM4-RS232)
(Calculated using MIL-HDBK-217F generic failure rates at Ground Benign)
Note:
In order to prevent confusion between standard PC AT nomenclature of COM1-4, this
manual will refer to the four communications channels on the PC-COM4 as Channel A-
D. Where the manual refers to COM1-4, this will mean the standard PC AT
communications ports.
Product Components
As shipped, the PC-COM4 is supplied with the following items:
The PC-COM4 board.
This Manual
A disk containing a ‘C’ example program and the UART data-sheet in Adobe Acrobat
(Portable Document) Format.
>100V DC
> 100V DC
> 100V DC
> 100V DC
Adobe Acrobat Reader can be downloaded free of charge from Arcom’s Internet Site at
http://www.arcomcontrols.com
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