Specifications

Voice Storage System
198 025-9035AA
excessive silent gaps between words during the recording, thereby saving both voice
storage and disk traffic.
The Voice system does not trade capacity for message quality. Its bandwidth capability
exceeds that of standard telephone lines, ensuring that the playback fidelity will be just as
good as the original message. Even when recording with the Pause Compression feature
turned on, audio is clean and the silent gaps are not missed.
ITU ADPCM Cards (702-0065 and 702-0066)
The ITU ADPCM cards covered in this subsection are available as part of two option
packages. There is the “standard” version (950-0385) and the “high capacity” version
(9500386). A standard card has 14 voice channels. A high capacity card has 28 channels.
A paging terminal can have one or two of the standard capacity cards, or a single high
capacity card.
The cards are referred to as “ITU” ADPCM cards to differentiate them from an older
version of ADPCM card that was discontinued in 2003.
Slots
The Voice Card can be plugged into any card slot that has connectors on both the upper
and lower backplanes. On the Model 2200, slot 5 or 6 is normally used; on the Model
2100, slot 4 or 5 is normally used.
Address Settings
The ADPCM card has address jumpers that select the I/O address for the card as shown in
the following table (multiple cards share the same memory area).
Mode Settings (ITU ADPCM Cards 702-0065 and 702-0066)
These configure options for Pause Compression rate and testing modes by using a
software file that is loaded at power-on or boot-up. Consult Zetron 2000 Series
Applications Engineers for specific information.
Jumper Meaning
JP1 A = Card #1
B = Card #2
JP3 A = Card #1
B = Card #2