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Description

RS-232 to RS-232 / isol Repeater


The I-7551 Photo coupler provides a complete full-duplex (including control signal) electrical isolation channel
between two RS-232 devices. This isolation is an important consideration if a system uses different power sources,
has noisy signals, or must operate at different ground potentials.
The I-7551 provides the option of reconfiguring which control signal is used. CTS can be selected instead of DSR,
and RTS instead of DTR.
The I-7551 incorporates two DC-to-DC converters, the isolation site of the I-7551 is located in the input and
output interface circuit. In other words, the I-7551 is 3-way isolation RS-232 to RS-232 repeater.

● 3000 VDC 3-way Isolation Protection
● ESD Protection
● Power Input, +10 ~ +30 VDC
● Baud Rate, 300 ~ 115200 bps
● Operating Temperatures, -25 °C ~ +75 °C
● DIN-Rail

Specification

Filter criteria

Customs Tariff Number
84733020
Applications
Industrial Automation
Isolation
yes
RS-232
01
Status
Standard
Manufacturer
ICPDAS

Specification

COM Interface
I-7551-CR
Baudrate
15200 bps
Hierarchy
-
COM1
RS-232 (Input: TxD, RxD, CTS, RTS, GND or TxD, RxD, DSR, DTR, GND Jumpers JP1 and JP2 are used to select the RS-232 input source type)
COM2
RS-232 (Output: TxD, RxD, CTS, RTS, GND or TxD, RxD, DSR, DTR, GND)
COM3
-
COM4
-
COM5
-
Isolation Voltage
3000 VDC Three Way Isolated Protection
Installation
I-7551-CR
Dimensions (WxLxH)
72 x 118 x 35 mm (WxHxD)
Voltage Supply
10-30 VDC
Operating Temperature
-25 to 75°C
Mounting
DIN-Rail
Housing
Plastic with UL94-V0
Color
Blue
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