01423 340 000

ASLH394 GSM/GPRS DINCONNECT Pulse Counter supplied with Active Roaming SIM

  • Equipped with secure solid-state SIM supporting multiple networks with ASLH's proprietary Advanced Roaming Protocol to ensure communications performance 
  • Inputs: 1 pulse input
  • Internal battery backed Real Time Clock for HH data storage
  • Power supply = 85 – 265VAC via terminal block
  • ASLH Advanced Roaming Protocol
  • ASLH Telemetry Protocol
  • Intelligent network watchdog
  • Non-volatile storage of all data
  • Live and HH data presented.
  • Secure roaming IFF SIM
  • External Antenna SMA socket
  • Remote configuration and diagnostics
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Product Details

ASLH's brand new GSM/GPRS Pulse modem is available ex-stock! 

Secure IFF SIM cards are equipped with each modem to allows 1 Pulse Input recording in 32 non-volatile registers (RTC Collects HH interval Count Data).

An SMA Node aerial is required for remote monitoring 

Product Specification


  • GPRS Protocol SupportsTCP/IP stack Class 10, and ASL high efficiency telemetry protocols (ATP) 
  • Network compatibility – Quad band for use on GSM and GPRS (Class B 4+1) networks at 850/900/1800/1900MHz 
  • Non-volatile storage of all data 
  • Internal battery backed Real Time Clock for HH data storage
  • IFF Secure SIM 
  • Advanced multi-network Roaming Protocol 
  • Pulse inputs via terminal block, optional contact wetting source. 
  • 1 pulse in (standard) up to 4 available (option). 
  • Operational status LEDs Green, Red (see full technical user guide for operational use) 
  • Data rates & standards V22 (1200bps), V22bis (2400bps), V32 (9600bps) 
  • Error Correction / Data Compression V42, V42bis standards for modem and V110 for ISDN and GSM hosted applications 
  • Control of functions by ‘AT’ compatible command subset; remotely configurable.  SMA antenna sockets

Electrical: Power supply = 85 – 265VAC via terminal block

Environmental conditions: -20 to +55°C operating; -20 to +70°C storage. Humidity 0-95% non-condensing

Approvals: The product conforms to: 3GPP TS 51.010-1, EN60950-1, EN 301511, EN 301489-7, EN 3014891 EN55022, EN61000-4, Directive 1999/5/EC, 2004/108/EC and Low Voltage Directive 2006/95/EC.

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