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0.38 LBS
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Product Description

Model: XP485-DEI

RS232 to RS485 optical isolated auto enabled converter din rail mounting.

The Integrity Instruments XP485-DEI optical isolated unit provides 1KV isolation, additional input power filtering and transient voltage suppressors on data lines to automatically convert your RS232 data to RS485 data for long distance multi-point transmission of up to 4,000 feet.

From the people who developed the industry’s first microprocessor controlled auto enabled RS-485 converter comes the next generation of RS-485 protocol converters. Designed for today’s demanding hardware and software systems these state of the art converters feature the latest design technology and utilize a high speed embedded RISC processor for reliable and hassle free operation. Automatic conversion modes are easily configured in software and all settings are saved in on board EEPROM.

The XP485-DE converter is fully micro processor controlled.
No dip switches to set!

You can software select two different automatic modes "Bit time calculated" or "Fixed baud rate" mode.


Two automatic RS-485 transmit enable modes:

Bit time calculated
Transmit turnaround is automatically controlled by calculating one byte idle time of the current baud rate.

Fixed baud rate
Transmit turnaround is automatically controlled to near zero turnaround time for a set of fixed baud rates ranging from 1200 to 115,200 baud.
See the Users Manual pages 6 and 7 for more details.

All units come standard with 3 LED indicators to help you monitor your system; and an extended –40°C to +85°C operating temperature range.


Specifications - XP485-DE

Temperature Range -40 to +85° C
RS-232 Connection TB1 Screw terminals on unit.
RS-485 Connection TB2 Screw terminals on unit
one twisted pair wiring A/B signals.
Distance 4000 feet
Isolation 1000V Optical Isolation
Speed 1200 BPS to 115200 BPS
PC Comport Flow Control Settings None required auto enabled
RS232 TX, RX and GND
Automatic Signal Settings Bit time calculated
Fixed baud rate
Modes software selectable.
Auto Enabled Turnaround Bit time calculated
Transmit to receive turn-around is one byte time at current baud rate
Fixed baud rate
Transmit to receive turn-around near zero for the selected baud rate. See manual for more details.

Reverse polarity diode protection
ZNR MOV and TransZorbs® on RS485 data lines.
Reverse polarity diode protection

Nodes 255 nodes on a single twisted pair
Linear Technologies LTC1487
DTE/DCE May be wired DTE or DCE on the terminal strip connector.
Termination On board jumper pin control provided
Status LEDs Yellow power indicator
Red transmit 232 to 485
Green receive from 485 to 232
Power Requirements 7.5VDC to 24VDC
22 ma nominal (250 ma dead short)
Power Supply External power supply required.
Power can be connected to terminal block, or convenient power jack.
Our PS9JS or PS9J power supply may be used.
Electronic Documentation

Users Manual



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