Data Sheet 270039 -- RS-232 Optical Isolator Card

Data Sheet 270039 -- RS-232 Optical Isolator Card
EST Catalog u EST2 Mid-Range Life Safety Systems
RS-232
Optical
Isolator Card
IOP3A
Overview
Application
The IOP3A is an optically isolated RS-232 card that electrically
isolates the power between the CM1(N), CM2N, FCC, 2-MCM(N),
QuickStart, and 3-CPU(1). The IOP3A also provides power for use
with short haul modems and fiber optic drivers. The IOP3A is a 1/2
size footprint card that is mounted in an enclosure adjacent to the
CM1(N), CM2N, FCC, 2-MCM(N), QuickStart, and 3-CPU(1). The
module is powered by the system power supply that provides battery back up. The IOP3A, through it’s on-card regulator, generates
isolated power for the RS-232 drivers. The on-card regulator also
provides isolated 12 Vdc power for use with external modems and
drivers. Two RS-232 ports are provided that operate parallel with
each other. A DB-9 connector is available for a con-venient point
of connection for a system program download cable.
The IOP3A card must be used when a Color Graphics Package
(CGP), Computer Color Annunciator (CGA) or a Visual Display Unit
(VDU-3) is used in the system. These peripheral devices introduce
a system ground fault unless the peripheral device power is isolated
from the system controller power. In installations where the distance
between the IOP3A card and the peripheral device card are greater
than 50 ft modem devices must be used. If modem devices are
used, power is available on the IOP3A for the modem. In applications requiring multiple printers, the IOP3A provides two separately
driven ports for this purpose. The IOP3A automatically disconnects the RDU modem when the printer is active.
Engineers Specification
Standard Features
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Optically isolates RS-232 signals
Built-in transient suppression
Supports short haul modems
Supports fiber drivers
Supports RDU modems
Drives two RS-232 peripheral devices
Built in DB-9 connector for program download
Battery backed up
24 Vdc powered
1/2 size footprint module
Low standby current
Page 1 of 2
Connection to peripheral RS-232 devices shall be made through
an optical isolator card. The isolator card shall prevent ground
faults and ground loops of the peripheral devices from interfering with normal system operations. The isolator module shall be
capable of driving two independent RS-232 circuits or peripheral
devices. The isolator module shall provide a convenient connector
to download system data base information to the system controllers without the need to disconnect peripheral devices. The isolator module shall be powered from the system power supply and
be battery backed up. The isolator module shall provide isolated
power for short haul modems and fiber optics drivers. The RS-232
optical isolator card shall be a model IOP3A.
270039
D ATA S H E E T
Not to be used for installation purposes. Issue 4
Connection Diagram
IOP3A to CM motherboard wiring
IOP3A to 3-CPU1 wiring
Detection & alarm since 1872
U.S.
T 888-378-2329
F 866-503-3996
Canada
Chubb Edwards
T 519 376 2430
F 519 376 7258
Southeast Asia
T : +65 6391 9300
F : +65 6391 9306
India
T : +91 80 4344 2000
F : +91 80 4344 2050
Australia
T +61 3 9239 1200
F +61 3 9239 1299
IOP3A to 2-MCM(N) wiring
Europe
T +32 2 725 11 20
F +32 2 721 86 13
Latin America
T 305 593 4301
F 305 593 4300
utcfireandsecurity.com
© 2010 UTC Fire & Security.
All rights reserved.
Specifications
Input power
Baud rate
Temperature Range
Humidity range
Isolated power output
Mounting
Agency Listings
Voltage: Nominal 24Vdc; Standby Current: 60 mA
300 - 9600
32° - 120° F (0° - 49° C)
85% non condensing
Voltage: 12 Vdc; Current (max): 10 mA
1/2 size footprint
UL, CSFM, MEA, ULC
Ordering Information
Model
IOP3A
270039
D ATA S H E E T
Not to be used for installation purposes. Issue 4
05-18-11
Page 2 of 2
Description
Isolated RS-232 card
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