Moxa Technologies CA-132 series User manual

CA-132/132I
Quick Installation Guide
www.moxa.com/product
Second Edition, November 2004
Moxa Technologies Co., Ltd.
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CA-132/132I
Quick Installation Guide
The software described in this manual is furnished under a license
agreement and may be used only in accordance with the terms of
that agreement.
Copyright Notice
Copyright 2004 Moxa Technologies Co., Ltd.
All rights reserved.
Reproduction without permission is prohibited.
Trademarks
MOXA is a registered trademark of The Moxa Group.
All other trademarks or registered marks in this manual belong to
their respective manufacturers.
Disclaimer
Information in this document is subject to change without notice
and does not represent a commitment on the part of Moxa.
Moxa provides this document “as is,” without warranty of any
kind, either expressed or implied, including, but not limited to, its
particular purpose. Moxa reserves the right to make improvements
and/or changes to this manual, or to the products and/or the
programs described in this manual, at any time.
Information provided in this manual is intended to be accurate and
reliable. However, Moxa Technologies assumes no responsibility
for its use, or for any infringements on the rights of third parties
that may result from its use.
This product might include unintentional technical or
typographical errors. Changes are periodically made to the
information herein to correct such errors, and these changes are
incorporated into new editions of the publication.

Table of Contents
Chapter 1 Introduction………………………… 1-1
Overview............................................................. 1-2
Package Checklist .............................................. 1-2
Product Features ................................................ 1-2
Product Specifications ........................................ 1-3
Chapter 2 Hardware Installation…………….. 2-1
Block Diagram of CA-132/132I ........................... 2-2
RS-422/485 Interface Settings............................ 2-3
I/O Base Address & Interrupt Vector Settings .... 2-4
IRQ Setting ......................................................... 2-7
Initial Inspection.................................................. 2-7
RS-422/485 Pin Assignments............................. 2-7

1
1
Chapter 1 Introduction
Welcome to MOXA CA-132/132I Series of advanced 2-port
RS-422/485 PC/104 communication modules, a new industrial
multiport serial board solution. Both ports of CA-132/132I can be
configured by DIP Switch for either the RS-422 or RS-485
interface, and with its PC/104 standard, the CA-132/132I Series is
compatible with any PC/104 CPU module or CPU card that
accepts PC/104 expansion modules.
The following topics are covered in this chapter:
!Overview
!Package Checklist
!Product Features
!Product Specifications

1-2
Overview
CA-132/132I is a PC/104 module that supports the RS-422/485
serial interfaces, and can be used with PC/104 CPU modules or
CPU cards that accept PC/104 expansion modules. CA-132/132I
has two independent serial interfaces, which are accessed through
RJ45 connectors. You can configure both ports for the RS-422 or
RS-485 interfaces by DIP switch. The module’s industry-standard
MOXA UART (16C550 compatible) is fully programmable. Moxa
has implemented its patented ADDC™ technology for RS-485
automatic direction control, so there is no need to change jumpers
to switch the module between driver and receiver. The built-in 16
KV ESD surge protection protects other devices connected to the
RS-485 network.
Package Checklist
MOXA CA-132/132I products are shipped with the following
items:
!1 MOXA CA-132/132I 2-port serial board
!CA-132/132I Document & Software CD
!CA-132/132I Quick Installation Guide
NOTE: Notify your sales representative if any of the above items is
missing or damaged.
Product Features
CA-132/132I Series products enjoy the following features:
!2 RS-422/485 ports
!RS-422/485 communication distance up to 4000 feet (1.2 km)
!High speed data transmission rate up to 230.4 Kbps

Introduction
1-3
!Switch selectable for I/O and INT Vector addresses
(from Hex 000 to 3FF)
!64-byte FIFOs
!IRQ settings are selectable by jumper
!Built-in 16 KV ESD surge protection for TX and RX lines
!4 LED indicators onboard (red for TX, and green for RX)
!Support 4-wire RS-422 and 2/4-wire RS-485
!ADDC™ for RS-485 transmission
!CA-132I has 2 KV isolation protection
Product Specifications
CA-132/132I Series boards have the following specifications:
!Dimensions: 9.6 cm ×9.0 cm
!Bus: PC/104
!Baud rate: 50 to 230.4 Kbps
!Character length: 5, 6, 7, or 8 bits
!Parity: even, odd, none, mark, and space
!Stop bit: 1, 1.5 or 2
!I/O connectors: dual 8-pin RJ-45 connectors
!Interrupt levels: IRQ 3, 4, 5, 6, 7, 9, 10, 11, 12 or 15
!Clock input: 14.745 MHz
!Power consumption (+5 V): CA-132/190 mA, CA-132I/405 mA
!MTBF: 100,000 hrs @ 25°C environment
!Operating temperature: 0 to 55°C
!Storage temperature: -20 to 85°C
!Relative humidity: 5 to 95%, non-condensing

2
2
Chapter 2 Hardware Installation
This chapter includes information about hardware installation of
CA-132/132I Series boards.
The following topics are covered:
!Block Diagram of CA-132/132I
!RS-422/485 Interface Settings
!I/O Address & Interrupt Vector Settings
!IRQ Setting
!Initial Inspection
!RS-422/485 pin assignments

2-2
Block Diagram of CA-132/132I

Hardware Installation
2-3
RS-422/485 Interface Settings
You can use DIP switches SW3 and SW4 to configure each port
individually for either RS-422 (4-wire) or RS-485 (2/4-wire)
interface with termination resistor on/off (120 ohm). SW3
configures Port 1, and SW4 configures Port 2, as shown in the
switch setting diagrams below.
W3(P1) SW4(P2)
The following diagram shows how to use the DIP switches to
configure each port for either RS-422 (4-wire) or RS-485 (2/4-wire)
interface with or without termination resistor.

2-4
I/O Base Address & Interrupt Vector Settings
CA-132/132I Series boards have two 7-switch DIP switch panels,
named SW1 and SW2. Panel SW1 is for I/O Base Address setting,
and SW2 is for Interrupt Vector setting. Once you configure Port
1’s I/O Base Address and Interrupt Vector, the settings for the
other ports will be configured automatically. You can choose base
addresses from Hex 000 to 3FF. The default settings are CH#1
(Hex 180) for I/O Base Address and 1C0 for Interrupt Vector
settings.

Hardware Installation
2-5
Example:
When you wish to configure your Port 1’s I/O base address to 180,
the DIP switch settings of panel SW1 should be as follows:
When you wish to configure your Port 1’s INT Vector to 1C0, the
DIP switch settings of panel SW2 should be as follows:
The following diagrams show the DIP switch settings of panel
SW1 and panel SW2 when the I/O base address is configured to be
180, and the INT Vector is configured to be 1C0.
The diagram shown above is
SW1 for setting I/O Base
Address.
The diagram shown above is
SW2 for setting INT Vector.
A3 A4 A5 A6 A7 A8 A9 Hex
On On On On Off Off On 0 ×180
A3 A4 A5 A6 A7 A8 A9 Hex
On On On Off Off Off On 0 ×1C0

2-6
At this point, the beginning of the I/O address for Port 2 will be
configured automatically to 188.
A3 A4 A5 A6 A7 A8 A9
8 1 2 4 8 1 2 Hex
On On On On On On On 0×000
On On On On On On Off 0×200
On On On On On Off Off 0×300
On On On On Off Off Off 0×380
On On On Off Off Off Off 0×3C0
On On Off Off Off Off Off 0×3E0
On Off Off Off Off Off On 0×3F0
Off Off Off Off Off Off Off 0×3F8
Off On On On On On On 0×008
Off Off On On On On On 0×018
Off Off Off On On On On 0×038
Off Off Off Off On On On 0×078
Off Off Off Off Off On On 0×0F8
Off Off Off Off Off Off On 0×2F8

Hardware Installation
2-7
IRQ Setting
The IRQ settings of CA-132/132I Series are selectable by jumper.
Before you insert a CA-132/132I board into the PC/104 interface,
you need to choose an available jumper from 3, 4, 5, 6, 7, 9, 10, 11,
12, or 15 to configure the IRQ setting.
Initial Inspection
Before we ship CA-132/132I products, we first perform a careful
mechanical and electrical inspection of the serial boards. Products
should be free of any marks or scratches and in perfect electrical
order when customers receive them. Handle these boards only by
their edges, since the static charge from your body may damage
the integrated circuits. Always keep the boards in their anti-static
package whenever they are not installed. You can also use this
package to return the board should it need to be repaired.
RS-422/485 Pin Assignments
Async Port 4-wire RS-422 Pin Assignment (RJ45)
PIN SIGNAL PIN SIGNAL
1 X 5 RXD-
2 X 6 RXD+
3 TXD+ 7 GND
4 TXD- 8 X
Async Port 2-wire RS-485 Pin Assignment (RJ-45)

2-8
PIN SIGNAL
1 X
2 X
3 X
4 X
5 DATA-
6 DATA+
7 GND
8 X