The Protocol - May/Jun 2000

New DVF-64 Features

The soon-to-be released DVF-64 Rev. B has a new auto-sync feature, which allows the DVF to interface with systems having only data and clock available.

The revised version is backwards compatible with the original DVF-64 and interfaces to equipment with or without a sync. This feature eliminates any questions of which version is appropriate for your needs.

The DVF-64 is a natural companion to the Adaptive Pulse Code Modulation Card (ADPCM) and FDO-1000 Order-Wire for digital applications. The DVF operates on the 64 Kbit overhead on a SONET ring or other fiber network. It breaks the 64Kbit digital stream into three logical channels: 32Kbits for analog polling (202 modem), 8Kbits for digital polling (TABS) and 24Kbits for Order-Wire.

The ADPCM converts the voice for Order-Wire into the 24Kbit overhead provided by the DVF-64. This breakthrough allows both Order-Wire voice and alarm system data to occupy the same portion of the digital spectrum.


Do you have questions about an Order-Wire?
Give us a call at our toll-free number and talk to one of our specialists. They'll help answer any questions you may have.

Sales: 1-800-693-0351 · Support: 559-454-1600 · Fax: 559-454-1688
We're here to help.
1-800-693-0351

Ask Us a Question Image

Ask us anything, we're experts!

Sitemap
Our Commitment

"If you decide to work with me, I won't let you fail. If my solution doesn't solve your problems 100%, I don't want you to have it."

Bob Berry, CEO
Our Quality

Average client rating: 4.4 out of 5 stars based on 986 post-purchase surveys

Our HQ

DPS Telecom - Corporate Office:
4955 E. Yale Avenue,
Fresno, CA, United States 93727

USA: (800) 693-0351
International: +1 (559) 454-1600
sales@dpstele.com - Fax: (559) 454-1688
Memberships: Utilities Telecom Council (UTC)