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CRM/1Q – RS232-synthetic fiber converter – Low voltage

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CRM/1Q is an industrial optical-electrical converter, RS232 to synthetic optical fiber with Versatile Link connector, powered by a low voltage supply.

It accepts a wide range of AC and DC voltages, and it is completely Plug&Play, since it does not need any driver nor DIP switch. This RS232 serial converter is Full Duplex and it automatically detects the transmission data rate up to 40 kbps, so it can be easily installed in any new or existing network.

Thanks to its compact 1-module DIN rail housing, it can be easily mounted in an electrical panel.

SKU: CRM/1Q Category: Tags: , , , ,
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Description

CRM/1Q is an industrial optical-electrical converter, RS232 to synthetic optical fiber with Versatile Link connector, powered by a low voltage supply. It can be used to increase the transmission distance of a serial communication, or to isolate different branches of a network. Thanks to its compact 1-module DIN rail housing, it can be easily mounted in an electrical panel. It accepts a wide range of AC and DC voltages, and it is completely Plug&Play, since it does not need any driver nor DIP switch. This RS232 serial converter is Full Duplex and it automatically detects the transmission data rate up to 40 kbps, so it can be easily installed in any new or existing network.

 

Use cases

Optical-electrical converters are typically used to integrate a section of optical fiber in a RS232 low voltage network, in order to increase the transmission distance. They isolate the different branches of a network from electromagnetical interferences (EMI) and voltage surges, like the different floors of a hotel, or various branches of a solar power system. Electromagnetical interferences are fairly common in these environments, so it is good practice to integrate two or more optical-electrical converter to guarantee signal integrity. Furthermore, there are environments where electrical devices are strictly forbidden, such as pools, saunas, fire-risk buildings, so optical fiber is mandatory.

 

Versatility

Optical-electrical converters are available with different combinations of serial standard and optical fiber, or powered by 230 V. CRM/1S and CRM/1V converters for example accept synthetic optical fiber with a screw connector, or glass optical fiber with Bayonet connector, respectively. CFM/1Q and CMM/1Q are suitable for different serial standards, that is RS422 and RS485. Industrial serial converter CRP/1Q is functionally identical to CRM/1Q, but it is powered by 230 V mains voltage. Every combination of serial standard, optical fiber, and power supply, is however available, while special requests (such as higher data rates) can be made via the contact form.

Technical Specifications

Main features

Power supply

9 – 24 V AC 48/62 Hz

9 – 30 V DC

Power consumption

1 W

RS232

Communication type

Full duplex

RX input voltage

1.5 V low input threshold – 1.8 V high input threshold (± 25 V max)

TX output voltage

± 5 V (± 5.4 V max)

ESD performance RX / TX

± 15 kV (Human Body Model) – ± 8 kV IEC61000-4-2 contact discharge

Versatile Link

Optical fiber type

Synthetic: POF 2.2 mm – Core 1 mm

Hard Clad Silica (HCS): 200 / 230 μm

Maximum transmission distance

Synthetic: 100 m

Hard Clad Silica (HCS): 500 m

Transmission data rate

0 – 40 kbps (automatic)

Mechanical features

DIN Rail

1 module

Dimensions

90 mm x 18 mm x 57 mm

Weight

52 g

Working conditions

Degree of protection

IP20

Operating temperature

-20 °C to +50 °C

Storage temperature

-40 °C to +80 °C