T1,
Voice Compression (DCME)
Ordering
Information
VCL-LDTM
T1, DCME (Digital Circuit Multiplication Equipment) Voice Compression Equipment provides
24, "toll quality" voice channels using an 6:1 compression ratio (8:1
Compression Ratio without the signaling channel), in a bandwidth of 256kbps. |
 |
This
is accomplished using an advanced digital signal processor (DSP) based Virterbi decoder
with automatic voice/silence detection (VAD) and adaptive comfort noise generation (CNG). |
VCL-LD™ - Digital T1, Voice Compression Equipment (DCME)
(One VCL-LD Terminal shall be required at each end).
Sr.
No. |
Part # |
Product Description |
Quantity
Per System |
| 1. |
VCL-LD-200 |
VCL-LD, 19 inch shelf - 3U High
(sub-rack) |
1 |
| 2. |
VCL-LD-205 |
VCL-LD, Connectorized Backplane, 3U
High 1. |
1 |
| 3. |
VCL-LD-110 |
-48V DC Power Supply Card, Shelf
Power Supply Card |
1 |
| 4. |
VCL-EC128-T1 |
T1, Echo-Cancellor
128 ms. Echo-Cancellation
1, required for every VCL-LD shelf |
1 |
| 5. |
VCL-LD-240 |
T1, Interface card.
Provides ONE uncompressed T1 interface and ONE compressed T1 (fractional T1) interface.
1, required for every VCL-LD shelf |
1 |
| 6. |
VCL-LD-230 |
DS-0, Card,
Aggregates 10 compressed voice channels to a DS-0
(64Kbps time-slot).
3, required for every VCL-LD shelf |
3 |
| 7. |
VCL-LD-220 |
Voice Compression Card
Dual channel voice compression card.
12, required for every VCL-LD shelf |
12 |
| |
VCL-LD-T1 |
Complete - VCL-LD, T1 Voice
Compression Terminal |
|
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Technical specifications are subject to change without
notice.
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