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| ISA-2RS485
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| * product shown has optical isolation which is not included in the ISA-2RS485 |
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Features:
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| The
ISA-2RS485 multiport serial board is designed for RS-422/485
industrial communication. It supports two independent RS-422 or RS-485
ports, with each port able to control up to 64 devices in a multidrop
environment.
ADDC™ (Automatic Data Direction Control) intelligence is built into the board to eliminate the need for software interference. Hence,
applications can easily manage the half-duplex RS-485 port data transmitting
and receiving without the need for extra code. In addition, on-chip hardware
flow control, built-in termination resistors, and optical isolation and
surge protection options are able to deliver high reliability for harsh
industrial applications. |
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Specifications:
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| I/O
controller |
16C550C or
compatible x 2 |
| Connector type |
Male DB9 |
Interface
| Bus
|
ISA (16-bit) |
| Serial |
RS-422/485 |
| No. of ports |
2 |
|
Signals |
RS-422: TxD+/-, RxD+/-,
RTS+/-, CTS+/-, GND
RS-485: Data+/-, GND |
| RS-485
data control |
Auto ADDC™ or by
RTS |
|
Built-in termination resistor |
RS-422: 120 Ohm
RS-485: 120 Ohm, jumper enabled/disable |
Performance
| Speed |
50 bps – 921.6 Kbps |
| Max. no. of ports |
8 (4 boards) |
Configuration
| Parity |
None, even, odd, space, mark |
| Data bits |
5, 6, 7, 8 |
| Stop bits |
1, 1.5, 2 |
|
IRQ |
2 (9), 3, 4, 5, 7,
10 (Default), 11, 12, 15 |
| I/O
address |
0x0000 – 0xFFFF (Default:
0x180) |
OS supported
ISA-2RS485
|
Windows
XP, Windows 2000, Windows NT, Windows 95/98/ME, Windows 3.x, DOS, SCO Open
Server, SCO UNIX, SCO XENIX, Linux 2.0.x (Intel x86), Linux 2.0.x (Alpha),
Linux 2.2.x (Intel x86), Linux 2.2.x (Alpha), Linux 2.4.x (Intel x86), QNX
4.2.x |
Power and Environment
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Power requirements |
240 mA max. (+5V)
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| Operating temp. |
0 – 55 °C |
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Operating Humidity |
5 – 95% RH |
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Storage Temp. |
-20 – 85°C |
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Dimensions |
157 x 75 mm (W x D) |
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Optical Isolation |
none
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| Regulatory
approvals |
FCC, CE |
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| Qty |
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| * Contact Embedtec for other configurations and quantity discounts. |
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