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B&B Electronics 485OI9TB - Datasheet User Manual

Isolated serial converter, 485oi9tb

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SpeCiFiCationS

serial teChnology

Data Rate

9600 bps

rs-232

Connector DB9 Female (DCE)

Signals TD, RD, GND

rs-422/485

Connector Terminal block

RS-485, 2-Wire

Data A (-), Data B (+), GND

RS-422/485, 4-Wire

TDA(-), TDB(+), RDA(-), RDB(+), GND

isolation

Lines Protected

Data lines

Method

Optical

Rating

1,500 V

Power

note: requires 2 Power sources

rs-232

Source Port-powered from DTR and RTS handshake lines

rs-422/485

Connector Terminal block

Voltage 10-14 VDC

Consumption 0.9 W

Source External

terMinal bloCk

Wire Size

26 to 16 AWG

Torque

2.0 lb fin

enClosure

Material

Plastic

Dimensions

5.5 x 8.3 x 1.7 cm (2.2 x 3.3 x 0.7 in)

Mounting

Inline

environMental

Operating Temperature

0 to +50 °C (+32 to +122 °F)

Storage Temperature

-40 to +85 °C (-40 to +185 °F)

Operating Humidity

0 to 95% non-condensing

MTBF

272581 hours

MTBF Calculation Method

MIL 217F Parts Count Reliability Prediction

aPProvals / CertiFiCations - 485oi9tb

cULus, File Number: E222870
FCC Part 15, CISPR, EN 55022: 2010 + AC:2011 Class B Emissions
CE
EN 61000-6-1: 2007 Generic Standards for Residential, Commercial and Light-

Industrial Environments

EN 61000-4-2: 2009 Electro-Static Discharge (ESD)
Download complete Declaration of Conformity at www.bb.elec.com

isolated Serial Converter

485OI9TB

Model 485OI9TB is a basic, isolated converter. It converts unbalanced, full
duplex RS-232 signals to balanced full-duplex (4-wire) RS-422/485 or half-
duplex (2-wire) RS-485 signals.

The converter provides 1,500 Volts RMS optical isolation of the data lines
and ground (and connected devices) between the RS-232 and RS-422/485
signals. RS-232 port has a female DB9 connector. RS-422/485 port has a
6-position terminal block.

The RS-232 side of the converter draws power from the handshake lines
(DTR, RTS). At least one handshake line must be asserted (raised high)
to power the RS-232 side.The RS-422/485 side must be powered by an
external 12 VDC power supply (sold separately).

• 1,500 Volts optical isolation
• Converts RS-232 to RS-422/485
• 4-wire, full-duplex RS-485
• 2-wire, half-duplex RS-485

proDuCt FeatureS

orDering inFormation

Model

nuMber

rs-232 ConneCtor

rs-422/485 ConneCtor

485OI9TB

DB9 Female

Terminal Block

aCCeSSorieS

485PS2 - 12VDC@100mA wall transformer power supply, tinned stripped leads
9PAMF6 - 6 ft. (1.8 m) RS-232 Serial Cable
E1250BL-BB3 - 12VDC @ 500MA European wall transformer power supply,

tinned stripped leads
MMNM9 - DB9 male to DB9 male Null Modem Adapter

485OI9TB_3713ds