Model 1750

The Model 1750 is a compact expandable redundant ringing system (30 to 90 watts) with output distribution fuses.



  • CLEC Ringing
  • Channel Bank
  • Special Services
  • Private Line
  • Customer Premises
  • Vault or Cabinet Residual
  • Fiber Node Residual


  • One rack space 1.75″ height
  • 19″ or 23″ mounting
  • Up to 60 watts continuous ringing power
  • Short circuit and overload protection
  • Self Monitoring
  • Visual Status Indicators
  • Fuse distribution Included
  • Selectable 17-20-23 or 25 HZ ringing @ 75 or 86 volts
  • Major, Minor, and Fuse Alarm relays
  • Low Power Consumption
  • Front accessible
  • No maintenance or adjustments required


The Model 1750 is a state of the art low profile sine wave ringing generator capable of providing up to 60 VA of continuous ringing from a -48 VDC source.  The selectable output is capable of providing 75 or 86 VAC at different frequency choices.  Status indicators are highly visible and front access allows easy serviceability.

This space saving one rack space (1.75″ high) unit is lightweight and available in 19 or 23 inch configurations.  It is ideal for a variety of ringing applications.  the hot pluggable ringing modules can be replaced in service without interrupting the operation of the plant.  As system power requirements increase units are expandable.

Options and Ordering Information:

1750-S-3 – One 30 watt ringing generator with no backup
1750-D-3 – One 30 watt ringing generator backed up by a 30 watt ringing generator
1750-T-3 – Two 30 watt ringing generators backed up by a 30 watt ringing generator

Download Manual: 

Please fill out the following form to download the PDF Manual.

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Telecom Division Contacts:

Russ Arslanian, Sales/Marketing
Bill Murrin, Technical/Engineering
Dave Klingbeil, Technical/Engineering
Cora Rodgers, Administrative
Jenny Getchell, Administrative