Serial Communications 500FSD20 Modem 2400 baud V.23, R.35 / R.37 / R.38A
The 500FSD20 modem is designed for the operation on telecontrol communication lines. The 500FSD20 modem allows the assignment of a two- or four-wire line with communication channels of 50 baud up to 2400 baud.
Key highlights
- Voice frequency telegraphy device (VFT)
- Power supply 24...60 V DC
- Channel frequency and bandwidth are selectable according to CCITT standards (R.35...R.38 or V.23/ 1200 Baud)
- Additional 600 baud or 2400 baud channel
- Product details
- Resources
Overview
The 500FSD20 is interoperable with RTU500 and standard-compliant third-party equipment. However, it can also be connected to other data terminal equipments because it operates at the interfaces like a universal FSK-modem in the voice-band range (300-3400 Hz) according to CCITT.
The modem allows the assignment of a twoor four-wire line with communication channels of 50 baud up to 2400 baud (24 channels 50 baud, 12 channels 100 baud, 6 channels 200 baud, 2 channels 600 baud, 1 channel 1200 baud).
A high-resistance staggering is possible with the 500FSD20 modem on multi-drop lines. Full- and halfduplex operation is possible without special additional provisions like hybrid termination circuit according to channel assignment and selected two wire or four-wire line. It is designed for the transfer characteristics of localcable-wires. A digital signal processor (DSP) is responsible for the conversion of the binary information into the voice band and vice versa. Its high processing capacity allows beside others a high selective channel filtering (90 dB) and thereby an unrestricted channel assignment.
The 500FSD20 has a built-in overvoltage protection (OVP) against transient voltages.
Get Guidance From Our Experts
Whether you're exploring our solutions or evaluating your next steps, our team is here to help. Speak with specialists who understand your challenges, provide clarity, and guide you toward the right fit for your operations.