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QVP T1

Product Features | Overview | Technical Specifications

Narrowband Voice Enhancement Platform
T810, T830
Built with Ditech Networks’ industry-proven voice processing technology, the Quad Voice Processor (QVP) supports a wide range of Ditech’s Hybrid Echo Cancellation (HEC), Voice Quality Assurance (VQA™), and Experience Intelligence™ (EXi) solutions to provide superior voice calls for multiple network applications. Available with two digital signal processing power configurations and support for seamless local or remote software upgrades, the QVP allows future feature developments as they become available. The QVP ensures optimal voice quality performance in the network without the need for expensive overbuilds.

Up to 20 QVP cards with 4 T1s each can reside in a Ditech Carrier shelf, providing a very high density, low power, narrowband solution. Ditech also offers an Enterprise shelf for a single QVP card.

    
QVP - Carrier Shelf
QVP - Enteprise Shelf

Communications Solutions 2004 Product of the Year        GSM Highly Commended Award      

Product Features
  • 4 T1s per card and per Enterprise shelf
  • 80 T1s per Carrier shelf, 480 T1s per rack
  • Amphenol Telco, wire-wrap, and RJ-48 connectivity
  • Powering for –48 VDC or 110/240 VAC
  • Failsafe metallic bypass
  • Alarm relay for facility and equipment
  • Local or remote software upgrades
  • Easy-to-use local and remote management
Applications

Overview

Performance and Cost Optimization
Ditech’s QVP enables carriers to optimize performance and reduce the cost of their voice networks by eliminating low-density echo cancellation equipment. Ditech’s versatile platform supports a wide range of applications. Ditech’s VQA software suite for the QVP T1 offers a range of application-specific packages to meet the needs of any network.

Future-Proof Platform
As voice technologies and central office requirements change, the QVP can be reconfigured, upgraded while in service, or redeployed. Simplified remote management eliminates the time and expense of performing costly onsite configuration, maintenance, and upgrades. The QVP is backed by a dedicated Ditech support team providing 24x7 service.

Enterprise Solution
When installed in the 4sa Enterprise shelf, the QVP T1 provides a cost-effective solution for Enterprise or Remote Office applications, providing voice processing for between 1 and 4 T1s in a compact, tabletop or rack-mountable, AC- or DC-powerable chassis with RJ-48 or wire-wrap connectors.

Carrier Solution
When installed in the 80sa Carrier shelf, the QVP T1 provides a high-density narrowband echo cancellation solution that easily scales from 1 to 80 T1s per 19″ rack-mount shelf assembly. The 80sa Carrier shelf is available with either wire-wrap or Amphenol connector options and is engineered with dual redundant –48 VDC power and forced-air cooling for central office deployments. Up to 6 Carrier shelves can fit in a 7′ rack, for up to 480 T1s per rack.

Platform

QVP T800
Processing Power 8 DSPs per card
Power Consumption 13W maximum per card
<0.27A @ –48 VDC
<135mW per DS0
Dimensions (H x W x D) QVP card: 9.46 x 0.84 x 9.03 inches
Weight QVP card: 1.2 lbs (0.54 kg)

Shelf Options

Carrier Shelf (80sa High Density)
20 QVP cards, 80 T1s maximum per shelf
6 shelves maximum per 7-foot rack (480 T1s)
Mounts for 19″ or 23″ ANSI/EIA racks
Power Consumption 260W (fully loaded shelf)
Fan assembly: 18W (per shelf)
Input Voltage Dual A&B –48 VDC source: –36 to –60 VDC
Dimensions (H x W x D) Wire Wrap shelf or Amphenol Telco RJ-21X shelf (5.6 RU): 9.8 x 17.3 x 12.0 inches
Fan assembly (1.3 RU): 2.3 x 17.3 x 12.4 inches
Weight Empty shelf: 19 lbs (8.6 kg)
Fully loaded shelf: 43 lbs (19.5 kg)
Enterprise Shelf (4sa)
1 QVP card, 4 T1s maximum per shelf
Mounts for 19″ or 23″ ANSI/EIA racks
Rubber feet for tabletop mounting
Power Consumption 13W (fully loaded shelf)
Input Voltage –48 VDC source: –36 to –60 VDC
110/240 VAC, 50/60 Hz autosensing, universal
Dimensions (H x W x D) RJ-48C/Wire Wrap shelf (1 RU): 1.75 x 17.3 x 9.4 inches
Weight Empty shelf: 1.9 lbs (0.86 kg)
Fully loaded shelf: 3.1 lbs (1.4 kg)

Technical Specifications
Monitoring | Front Panel Control | Terminal Control | Network Interface | Synchronization | Redundancy | Environmental | Reliability | Regulatory Information

MONITORING
Alarm Monitoring Per GR-499-CORE
Dry contacts for Alarms and E2A Interface
Performance Monitoring Referencing ANSI T1.231-1997
FRONT PANEL CONTROL
Alarm Indicators LEDs for power/logon, ACO, and major and minor facility and equipment alarms
TERMINAL CONTROL
Serial Interface 3 RS-232 (RJ-11) ports (1 on faceplate, 2 on backplane)
Data transfer selectable up to 19200 baud
Local and Remote Provisioning Local: CLI, WinMAP™ GUI
Multisite: NetConsul™ EMS
NETWORK INTERFACE
Line Rate 1.544 Mbps
Framing Format SF (D3/D4) per ITU-T G.733,
ESF per AT&T CB142
Line Encoding AMI-B7, B8ZS, Bipolar AMI
PCM Encoding Segmented –15 µ-255 per ITU-T G.711
Jitter Tolerance Per AT&T 62411, GR-499-CORE
Signaling CCS (C6, C7), RBS (E&M, PLR, FXS-GS,
FXO-GS, FXS-LS, FXO-LS)
Line Impedance 100 Ohm nominal, balanced per ITU-T G.703
Maximum Cable Length 655 feet using 100 Ohm cable
SYNCHRONIZATION
Through-timing
REDUNDANCY
Power Input Carrier shelf: A&B fused inputs for failsafe source redundancy
Protection Metallic bypass relays for failsafe operation
Fans alarmed; no single fan critical
ENVIRONMENTAL
Operational Temperature: 5° to 40°C
Short Term: –5° to 55°C
Humidity: 5 to 90%, non-condensing
Non Operational Temperature: –40° to 70°C
Humidity: 5 to 95%, non-condensing
Heat Output Carrier shelf: 890 BTU/hour
RELIABILITY
MTBF Per Telcordia SR-332 Issue 1
May 2001
QVP card: 42 years at 40°C
REGULATORY INFORMATION
UL 60950 / EN 60950
CAN/CSA-C22.2
EN 300 386-1 and -2
FCC part 15 Class A
CE Mark
Telcordia GR-1089-CORE
NEBS Level 3 per Telcordia SR-3580
RoHS 5/6