Industrial Grade Bell 202T Modems

SCADA Modem for Utility and Industrial Communications

The Synxcom industrial grade modems SM202T (Bell 202) and SMV23 (V.23) are designed and manufactured for rugged communication network applications. Both modems deliver cost-effective and reliable 1200 bps asynchronous solutions for point-to-point and multi-point connectivity. The SM202T/V23 modems are ideal for industrial communication applications including SCADA systems, RTUs, traffic monitor and control, and industrial automation networks. The SM202T/V23 supports RTUs with a user-selectable EIA RS-232 or RS-485 serial port at speeds up to 1200 bps.
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Key Features
  • Data Rate Support 0-1200 bps in Bell 202T mode 0-1200 bps in ITU-V23 mode Data Character Format: Asynchronous, transparent character format 9-, 10- or 11-bit character with 1 or 2 stop bits
  • DTE/RTU Interface: RS-232 (DB9) with full control signals RS-232 with 3-wire only interface (TD, RD, SG) RS-485 4-wire FD or 2-wire HD Auto RTS to support switched carrier multi-drop applications
  • Leased Line Interface: TELCO voice-band leased line, 2- wire half duplex or 4-wire full duplex Point-to-point or multi-point operation Private line or metallic circuits (19-26 AWG)
  • Enclosure and Mounting Options Desk-top version (4.1″(W) x 4.9″(L) x 1.4″ (H) DIN Rail Mounting kit option Wall Mount or Panel Mount optional Mounting kit Rack mount plug-in card (RM16M) format factor
  • AC or DC Power Supply Support 10 to 60 VDC, direct input, 1500VDC isolated 100-240 VAC 50 or 60 Hz (with AC to DC module) 100-400 VDC option (with DC to DC module) Low power consumption: 1.2 watts (active)
  • Industrial Grade Environment Industrial grade components and UL approved enclosure Operating temperature from -40 to +85C
Multi-point Polling Network with the SM202T & SMV23 Modems