Advantech BB-485SD9TB

These port-powered, two channel converters allow your computer to communicate longer distances by converting TD and RD RS-232 lines to RS-485 signals. RS-485 also provides multi-drop capability.

All converters feature Automatic Send Data Control which enables the driver when data is present on the RS-232 side. Control of the driver is automatic at speeds up to 115.2 kbps.

Converters are powered by the RS-232 port DTR and RTS handshake lines. The unit is powered from the RS-232 data and handshake lines whether the lines are high or low. If the handshake lines are asserted (held High), and no termination is used, the port power efficiency is greatly increased.

Model 485SD9TB can be optionally powered by an external 12 VDC power supply.

SPECIFICATIONS

SERIAL TECHNOLOGY

Data Rate
115.2 kbps maximum

RS-232
Connector DB9 female

RS-485
Connector Terminal block

Biasing Resistors
4.7k Ohms

POWER

Source
Port-powering: from RS-232 handshake lines.
External power option, 12-16 VDC (485SD9TB only)

Power Connector
Terminal block (485SD9TB only)

Input Voltage
12 VDC (485SD9TB only)

Power Consumption
40mA maximum

MECHANICAL

Dimensions
8.7 x 3.2 x 1.6 cm (3.4 x 1.3 x 0.6 in)

Enclosure
plastic

Weight
0.18 lbs (81.6 g)

MTBF
968410

MTBF Calc. Method
Parts Count Reliability Prediction

ENVIRONMENTAL

Operating Temperature
0 to +70 °C (+32 to +158 °F)

Storage Temperature
-40 to +85 °C (-40 to +185 °F)

Operating Humidity
0 to 95% non condensing

APPROVALS / CERTIFICATIONS - 485SD9R

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)
EN 61000-4-3: 2006 +A1 +A2 +IS1 Radiated Field Immunity (RFI)
EN 61000-4-4: 2012 Electrical Fast Transients-Burst Immunity (EFT)
EN 61000-4-6: 2009 Conducted Immunity