The Protocol - Nov/Dec 1998

Next: ARCO Alarm Monitoring

ADPCM Card Digitizes Order-Wire in only 24 Kilobits!

DPS Telecom's new Adaptive Pulse Code Modulations (ADPCM) card may well be the future of supervisory applications in the world of digital communications!

With a channel width of only 24 kilobits, the ADPCM leaves plenty of bits on the normal 64 Kbit channel for alarm and other supervisory uses.

Preliminary tests on the AT&T network indicate that voice quality degradation with the 24 Kbit channel is not detectable!

This breakthrough allows both order-wire voice and alarm system data to join together on the same portion of the digital spectrum.

The ADPCM card fits nicely in the expansion card slot of DPS' FDO 1000 order-wire chassis, making a single rack-unit package.

The ADPCM card includes two active VF ports that can be bridged for repeater applications or used to interface the FDO 3000 Off-Net. The receive ports are digitally mixed to reduce noise build-up through the network.

ADPCM card interfaces order-wire to digital network.

To find out more, contact DPS Sales at 1- 800-693-0351 for information.