The DSP9612FP - DSP9612LV - DSP9612RM Modem Replacement -
the DSP496 Fast Poll Modem

The DSP496 Fast Poll Modem is completely compatible with the DSP9612 modems.
The DSP496 Fast Poll modem will work on 2 and 4 wire lease lines and are designed for harsh environmental conditions (-40º to +85C) with ultra fast polling times. These multi-drop modems run on 12 - 24 - 48 - 125 VDC power and 115 - 220 -230 VAC at 60 Hz or 50Hz power - they also come in rack mount versions. Auto RTS is a new feature allowing multidrop for devices with 3 wire data interfaces and no control signals (no RTS signal) required.
Click HERE for the NEW 19.2 DSP modem
  • Triple Mode: Teleneticsâ QAM 9600 or 4800 bps, 1200 bps ITU V.23 and Bell202T
  • Fast train modem equalizer with 23 msec RTS/CTS delay @ 9600/4800 bps
  • DSP design with automatic adaptive equalizer
  • Leased-line or private wire interface
  • Line and power protected with heavy-duty surge protection
  • Standalone or nest cards
  • All settings are DIP switch selectable with no software code commands
  • Auto RTS allows multidrop for devices with 3 wire data interfaces
For the DSP496 specifications, click here
DSP496 Fast Poll Leased line modems are designed for harsh environmental conditions (-40º to +85C) with ultra fast polling times.

The Fast Poll DSP496 Fast Poll modem is a triple mode, full-featured 9600 QAM Fast Poll, 1200 bps FSK V.23 and Bell 202T leased line or private wire modem with the fastest training time in the Industry, 23msec RTS/CTS delay at 9600 bps and 8 ms in Bell 202T Mode. Ideal for utility and industrial automation multi-dropping applications, including SCADA systems, traffic automation and oil or gas automation projects, where an unlimited number of drops are desirable at ranges up to 16 miles (26 Km).

The DSP496 is a modem designed for 4-wire, full-duplex or 2-wire, half-duplex operation over a voice-band leased line or private copper wire. The modem design utilizes the latest digital-signal processing (DSP) technology to achieve high performance with an adaptive equalizer for the best operation on the poor unconditioned lines.

In Fast Poll Mode (9600/4800 bps), the DSP496 employs proprietary modulation and encoding scheme to achieve fast modem training time. In V.23 or Bell 202T Mode, the modem is also backward compatible with V.23 (0 – 1200) or Bell 202T (0 – 1800 bps) modems. Ideal for systems where fast response, short training time and low throughput delay is required, the DSP496 is optimized for fast receiver equalizer training and extremely low throughput delay. The triple mode capability allows the DSP496 to communicate with existing V.23 or Bell 202T remote modems at up to 1800 bps, which can then be upgraded at a later date to the DSP496 standalone modems and switched to 9600 bps.

Auto RTS is a new feature allowing multidrop for devices with 3 wire data interfaces and no control signals (no RTS signal) required.

Five models are available:
Four Rack Mount models for insertion into an RM16 (16 cards), R400-10 (10 cards), R800 (16 dual cards, 32 modems) and Telenetics Myriad nest (18 cards)

One Standalone Low Voltage model (10-53 VDC) that can be powered by 85-265 VAC or 85-400 VDC power adapter, with World Wide safety approvals.

Data Rate & Compatibility
  • Telenetics DSP9612 mode: 9600 or 4800 bps asynchronous, +1% - 2.5%
  • Bell 202T Mode: 0 – 1800 bps asynchronous
  • V.23 Mode: 0 – 1200 bps asynchronous
Data Format
  • 8 or 9 data bits with 1 or more stop bits
Line Requirement
  • TELCO Voice band 2 or 4 wire leased line.
  • Private metallic circuits, 26 to 19 AWG
RM Form Factor
  • RM Form Factor Motorola/UDS RM16M Universal Data Shelf
  • Dimension 9” x 6.25” x 0.87” Weight 8 oz.
Standalone Form Factor
  • Aluminum and Steel case
  • Dimension 5.70” x 8.30” x 1.50” (144.78 mm x 210.82 mm x 38.1 mm}
  • Weight 1.9 lb. (227 grams)
Diagnostic Features
Front panel LED for status monitoring:
  • Power (PWR)
  • Request to send (RTS)
  • Clear to send (CTS)
  • Transmit data (TXD)
  • Receive data (RXD)
  • Data carrier detect (DCD)
  • Data set ready (DSR)
  • Analog loopback (ALB)
  • Digital loopback (DLB)
Front Panel loopback control for testing
  • Local Analog Loopback (ALB)
  • Local Digital Loopback (DLB)
  • Remote Digital Loopback (RDL) (except V.23 Mode)
Operating Modes
  • 2-wire half-duplex or 4-wire full-duplex
  • Telenetics proprietary (FlashPoll Mode) and FSK (V.23 or Bell 202T Mode)
  • Automatic, adaptive in FlashPoll mode, Fixed compromise in FSK mode
Training Time (RTS to CTS delay)
  • FlashPoll Mode: 23 ms V.23: 33ms Bell 202T Mode: 8, 33, 59, 219 ms
Cable Equalizer
  • Fixed transmitter and receiver cable equalizer
Power Supply
  • DSP496LV, 10 to 53 VDC or add an external power adapter for 85 – 240 VAC
    or 90 – 400 VDC
Surge Protection
  • Provided at power line and leased line; Up to 15KV (Standalone version)
Carrier Control
  • Constant or switched, DIP switch selectable
Synchronization Loss Recovery
  • Built-in Train on Data for Fast Poll
Transmit Output Level
  • +3dbm to –14 dbm, 1 db step (DIP switch selectable)
Receiver Dynamic Range
  • +3 to -30 dbm or -10 to -43 dbm (DIP switch selectable)
Operating Temperature
  • -40ºC to +85ºC

General Specifications Mechanical Specifications

RS-232 (DTE) Interface
  • Signal Name Modem Input/Output DB25 Pin Description
  • Earth GND 1 Earth Ground
  • TXD Input 2 Transmit Data
  • RXD Output 3 Receive Data
  • RTS Input 4 Request To Send
  • CTS Output 5 Clear To Send
  • DSR Output 6 Data Set Ready (Modem Ready)
  • SG GND 7 Signal Ground
  • DCD Output 8 Data Carrier Detected
  • DTR Input 20 Data Terminal
  • Ready (Host Ready)
  • DRS Input 23 Data Rate Select
    Note: DCD active indicates that carrier is present and data at RxD is valid.
  • DCD is not an energy detector