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Synxcom SMV23 Industrial Grade Leased Line Modem

SKU: 1156 Category:

$521.25

Description

The Synxcom SMV23 industrial grade leased line modem is designed and manufactured for rugged point-to-point and point-to-multipoint communication networks. The SMV23 modem utilizes FSK modulation and is compatible with all other industry standard Bell V23 modems. The modem operates in 4-wire full duplex or 2-wire half duplex over TELCO leased line or private lines. The modem’s build-in intelligent micro-controller support DTEs with full RS-232, RS485, or just the 3-wire (TD, RD, GND) interface. The modem is ideal for multi-point communication applications including SCADA systems, RTUs, traffic monitoring and control, and industrial automation networks.

Key Features

  • Asynchronous operation from 0 to 1200 bps
  • Operate over TELCO voice-band leased lines or private lines
  • Operate over 4-wire or 2-wire leased line or private lines
  • Build-in micro-controller to support 3-wire RS-232 interface over switched carrier or constant carrier
  • Function as a limited distance modem operating 20+ miles over 19-26 AWG metallic circuits
  • Design for point-to-point and multi-point polling networks
  • Isolated AC or DC-DC power supply for standard AC, battery, or solar powered systems
  • Flexible configuration by DIP switches, no AT command set required
  • Build-in LEDs and loopback switch for local or remote diagnostics
  • Operate over wide range temperature of -40°C to +85°C
  • Supports RS-232, RS-485 and RS-422 interface
  • Small enclosure design for desk-top, DIN rail mounting or wall mount applications

General Specifications

Data Rate Support
Data Speed: 

  • 0-1200 bps in Bell 202T mode 
  • 0-1200 bps in ITU-V23 mode 

Data Format:  

  • Asynchronous, transparent character format 
  • 9-, 10- or 11-bit character with 1 or 2 stop bits 

Modulation 
Frequency Shift Key (FSK) 
Bell 202T Mode:

  • Mark  1200 Hz 
  • Space  2200 Hz 
  • Soft Carrier  900 Hz 

ITU-V.23 Mode 

  • Mark  1300 Hz 
  • Space  2100 Hz 

Transmission Line Interface 
Leased Line: 

  • TELCO voice band 2- or 4-wire leased lines 
  • Private or metallic circuits 2- or 4-wire, 19-26 AWG 

Connector:  4 pin RJ-11C modular Jack 
Transmitter output level:   0 to -12 dBm, selectable 

DTE/RTU Interface 
The modem provides serial ports to support both the RS-232 
and RS-485 interface standards: 

RS-232 Interface
Connector: DB9-F  
Signals: RTS, CTS, CD, TD, RD, DSR, SG 

RS-485 Interface 
Connector: RJ-11C 
Signals: 4-wire full-duplex: TX+, TX-, RX+, RX- F

Front Panel Indicators & Controls
LED. Indicators
RTS, CTS, TXD, RXD, CD, MR, ALB, DLB 

TEST Switch
Push Button for Analog Loopback, Digital Loopback 

Power Supply Specifications

  • Three models support various power options: 
    • Stand-alone:  90-264 VAC  
    • Stand-alone:  10-48 VDC 
    • Rack-mount: Powered by RM16M rack 

Power Consumption: 

  • Idle mode: 
    • 1.0 Watts 
  • Normal mode: 
    • 2.0 Watts, typical 

Mechanical Specifications 

  • Enclosure dimensions:  
    • 4.1”(W) x 4.9”(L) x 1.4” (H) 
    • 104mm(W) x 125mm(L) x 36mm(H) 
    • Weight: 0.5 pound, without AC power module 

Environment Specifications 

  • Temperature:
    • Operation:  -40°to + 85°C 
    • Storage:  -40° to +85°C
       
  • Humidity: 
    • Up to 95 % non-condensing 
       

ORDERING INFORMATION

SMV23

  • Standalone, V.23 compatible 
  • 0-1200 bps, 100-264VAC, 100-400VDC 

SMV23-DC

  • Standalone, V.23 compatible 
  • 0-1200 bps, 10-60VDC (isolated)

Additional information

Weight 0.50 lbs
Dimensions 4.90 × 4.10 × 1.40 in

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