Product catalog
CRM/1S – RS232-synthetic fiber converter – Low voltage
0,00 €
CRM/1S is an industrial optical-electrical converter, RS232 to synthetic optical fiber with screw 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 250 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.
Description
CRM/1S is an industrial optical-electrical converter, RS232 to synthetic optical fiber with screw 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 250 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/1V and CRM/1Q converters for example accept glass fiber with Bayonet connector, or synthetic optical fiber with VersaLink connector, respectively. CFM/1S and CMM/1S are suitable for different serial standards, that is RS422 and RS485. Industrial serial converter CRP/1S is functionally identical to CRM/1S, 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 |
| Serial transmission data rate | 0 – 250 kbps (automatic) – higher data rates on request |
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 |
Screw
| Optical fiber type | Synthetic: POF 2.2 mm – Core 1 mm |
|---|---|
| Maximum transmission distance | 100 m |
| Wavelength | 650 nm |
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 |
