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Product Data Document
420DS-4c
July 19, 2007 - Page 2
Specifications
CPU
•
Intel Ultra Low Power 486SX 32 bit processor
-25 MHz
•
Data Storage Memory: 2 MB SRAM battery
backed memory
•
Historical Archive Memory: Stored in either
flash or battery backed SRAM
•
Code/ Instruction Memory: 4 MB on-board
FLASH
•
BIOS: 512 Kbytes Boot-Block FLASH
Communication
•
Four RS-232 serial communication ports with
standard PC/AT 9-pin male D-sub connectors,
supporting baud rates up to 115.2 KB
•
One selectable RS 232 or RS 485 serial
communication port with standard PC/AT 9-pin
male D-sub connector, supporting baud rates up
to 115.2 KB
•
RS 485 port has line pull-ups and termination
resistor
•
Modem control on all ports.
•
One 10 Base-T Ethernet port with RJ45
connector - Optional.
•
Isolation: Ethernet port isolated to 500 Vdc
Power Supply/Sequencer Board
•
Input Power: 12 or 24 VDC input: 10 to 22 VDC
or 22 to 30 VDC
•
Plugs into Multifunction Motherboard
•
Provides system isolated + 5 VDC & +/- 12 VDC
power
Remote Automation Solutions
Website: www.EmersonProcess.com/Remote
Bristol
ControlWave
®
•
Fused with power-on switch.
•
Master Clear and Power Fail Indication
•
Power sequencer for auto power recovery
•
Power supply isolation: 500 VDC
•
Surge Suppression: 500 VDC MOV PSGND
to CHASSIS 32 V Transient suppressor across
VIN + to PSGND Meets ANSI/IEEE C37.90-
1978
Low Power Mode
ControlWave LP power consumption is highly
dependent on the actual application program and
whether or not you are using internal loop power to
field devices.
Typical power consumption range: 150 to 200 mA
@ 24 Vdc
Fixed Multifunction Input/Output Board
The Fixed Multifunction Input/Output Board (FMI/
OB) contains four I/O modules with pluggable termi-
nations and a PC-104 Interface for interconnection
of fixed and expansion I/O subsystems. The board
also provides for electrical isolation to field devices,
surge suppression, and LED indicators for Discrete
I/O, CPU, and communications functions. The four
I/O modules are fixed as follows:
•
16 Discrete Inputs
•
8 Discrete Outputs
•
4 High Speed Counters
•
8 Analog Inputs
Two on-board Field Power Supplies are provided:
one for DI and HSC operation and one for AI opera-
tion. The output voltages are electrically isolated
(500 VDC) and are regulated at 24V.
LP
®
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