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Orion Telecom Networks Inc. 2005
VCL-LD™VCL-LD™E1, Digital Voice Compression EquipmentE1, Digital Voice Compression Equipment
(Digital Circuit Multiplication Equipment - DCME)(Digital Circuit Multiplication Equipment - DCME)
Slide 1
Updated : January 1st, 2005
16810, Avenue of Fountains, Suite # 108,Fountain Hills, AZ 85268, U.S.A.
Phone: +1 (480) 816-8672Fax: +1 (480) 816-0115
E-mail: [email protected] Site: http://www.oriontelecom.com
Orion Telecom Networks Inc. 2005
Introduction• VCL-LDTM E1, DCME (Digital Circuit Multiplication Equipment) Voice Compression Equipment.• Provides 30, "toll quality" voice channels using an 8:1 compression ratio (10:1 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).• ITU-T G.703, G.704 interface compliant. • E1 signaling support for R2, CAS (ABCD) Digital Signaling, PRI ISDN (Q.931), SS7 and C7 Signaling. • Proven to outperform CELP, RELP, VSELP, MELP, ECELP, MP-MLQ, LPC-10 and other competitive technologies.
Highlights
• E1, 30 Toll-Quality voice channels in 256Kbps of bandwidth.• 8:1 compression ratio (10:1 without signaling channel).• Supports fax and data modems @ upto 33.6Kbps data rates.• 128 ms. adaptive Echo Cancellation.• DSP based Vertibi Decoder for superior voice quality.• 3U high, compact construction.• Extensive set of alarms.• User selectable clock sources.• Support fax and data modems @ upto 33.6Kbps data rates.
VCL-LD, E1 Voice Compression EquipmentVCL-LD, E1 Voice Compression Equipment
Slide 2
Orion Telecom Networks Inc. 2005
• Satellite Communications
• Digital Mobile Radio
• Secure Communications
• Cellular Telephony and PCS
• Voice Multiplexing
Applications
• Long Distance Telephony
• Prepaid Calling Card Service
• Call Center Applications
• Rural Telephony
• Voice Mail
VCL-LD, E1 Voice Compression EquipmentVCL-LD, E1 Voice Compression Equipment
Slide 3
Orion Telecom Networks Inc. 2005
• Support for multiple signaling platforms including CAS R2, PRI ISDN C7 and SS7 Signaling.
• Echo cancellation: Echo Canceller card cancels echo up to 128ms.
• Support fax and data modems @ upto 33.6Kbps data rates.
• E1, 30 voice channels in 256Kbps bandwidth (4, DS-0's) for voice only application.
• E1, 30 voice channels in 384Kbps (6, DS-0’s) for voice, fax and data modem support.
• Ideal choice for satellite communications, digital mobile radios, cellular network, long distance telephony service providers
(including pre-paid calling card operators), corporate customers for linking intercity voice networks, national and
international call-center applications .
• Modular Architecture - reduces downtime - dual port per card.
• Scalable - Build as you grow.
• Transport over point-to-point satellite links and dedicated leased lines.
• Superior Voice Quality.
• Robust to Bit Errors & Background Noise.
• High Quality Low Data Rate Speech Coding.
• Forward Error Correction.
• Voice Activity Detection (VAD) / Comfort Noise Insertion.
• Single and Dual Tone (DTMF) Detection and Generation.
• Minimal algorithmic processing delay.
• DTMF detection and regeneration.
Features
VCL-LD, E1 Voice Compression EquipmentVCL-LD, E1 Voice Compression Equipment
Slide 4
Orion Telecom Networks Inc. 2005
PERFORMANCEPERFORMANCE
Voice Quality Vs. Bit Rate
Mea
n O
pin
ion
Sco
re:M
OS 4.0
3.5
3.0
2.5
2.0
1.5
1.0
VCL-LD, E1 Voice Compression EquipmentVCL-LD, E1 Voice Compression Equipment
Slide 5
Orion Telecom Networks Inc. 2005
Application of VCL-LDApplication of VCL-LDTMTM DCME DCME
International & Domestic Long Distance Telephony - A
Fractional E1Compressed @ 256 kbps
Satellite / Leased LineE1, CAS R2
PRI ISDN (Euro ISDN)C7, SS7 Signaling
E1, CAS R2PRI ISDN (Euro ISDN)
C7, SS7 Signaling
PSTNSwitch
PSTNSwitch
VCL-LD VCL-LD
VCL-LD, E1 Voice Compression EquipmentVCL-LD, E1 Voice Compression Equipment
Slide 6
Orion Telecom Networks Inc. 2005
Long Distance Application - BLong Distance Application - B
PRI ISDN (23B+D)or
E1 C7/SS7 Signaling
256K Compressed E1 Fractional E1
Format
256K Compressed E1 Fractional E1
Format
Satellite link
PRI ISDN (23B+D)or
E1 C7/SS7 Signaling
E1E1
VCL-LDE1 DCME
VCL-LDE1 DCME
VCL-LD, E1 Voice Compression EquipmentVCL-LD, E1 Voice Compression Equipment
Slide 7
Orion Telecom Networks Inc. 2005
Call Center ApplicationCall Center Application
E1, CAS R2PRI ISDN (Euro ISDN)
C7, SS7 Signaling
Fractional E1Compressed @ 256 kbps
Satellite / Leased Line
PSTNSwitch
Call Centre
VCL-LD VCL-LDTM
VCL-LD, E1 Voice Compression EquipmentVCL-LD, E1 Voice Compression Equipment
Slide 8
Orion Telecom Networks Inc. 2005
Long Distance TelephonyLong Distance Telephony2 or Multiple E1’s - DCME Application2 or Multiple E1’s - DCME Application
Satellite link
E1
E1
E1
256K
E1
E1
E1
VCL-LDE1 DCME
256K Compressed E1 Fractional E1
256K Compressed E1 Fractional E1
VCL-LDE1 DCME
VCL-LDE1 DCME
VCL-LDE1 DCME
256K Compressed E1 Fractional E1
256K Compressed E1 Fractional E1
256K
VCL-LDE1 DCME
VCL-LDE1 DCME
VCL-E1 DACS VCL-E1 DACS
256K x “n”Value of “n” = number of compressed E1’s
in Fractional E1 Format
VCL-LD, E1 Voice Compression EquipmentVCL-LD, E1 Voice Compression Equipment
Slide 9
Orion Telecom Networks Inc. 2005
FRONT PANEL VIEW OF VCL-LDFRONT PANEL VIEW OF VCL-LD
19 inch Shelf
The detailed equipment components of the VCL-LD are listed below:
1. One, VCL-LD, 19 inch shelf and Connectorized Backpanel 2. One, -48 VDC, Power Supply Card3. One, E1, Echo Canceller Card (128 ms. echo cancellation)4. One, E1, Interface Card, provides one uncompressed E1 interface and one compressed E1 interface.5. DS-0, aggregate 10 compressed voice channels to a DS-0 (3 cards per system - maximum)6. Voice compression card, Dual channel voice compression card, (15 cards per system - maximum)
Voice CompressionCards
DS-0 Card
Voice CompressionCards
DS-0 Card
DS-0 Card
E1 InterfaceCard
Echo CancellerCard
Voice CompressionCards
Power SupplyCard
VCL-LD, E1 Voice Compression EquipmentVCL-LD, E1 Voice Compression Equipment
Slide 10
Orion Telecom Networks Inc. 2005
Technical SpecificationsTechnical SpecificationsDigital Network (PSTN) Interface 2048 Kbps Telco - E1
Number of E1 Interfaces 1Maximum number of VoiceChannels per E1 Interface 30Conformity G. 703Frame Structure As per ITU (CCITT) G.704PCM Sampling Rate 8000 samples/ secEncoding Law A law as per ITU (CCITT) G.711Bit Rate 2048 Kbps ± 50 ppmCode HDB3Nominal Impedance 120 balanced(75 unbalanced* - optional).Pulse Mask As per ITU (CCITT) Rec. G.703Output Jitter < 0.05 UI (in the frequency range of 20Hz to 100 Khz)Permissible Attenuation 6 dB at 1 MHz2048 KHz to 3072 KHz >14dBJitter Tolerance As per ITU (CCITT) G.823Supported Signaling Channel Associated Signaling, R2 Signaling
PRI (Primary Rate) ISDN Signaling (Q.931), C7, SS7 Signaling.
Clock Synchronization
Synchronization Sources Internal Clock, or, Timing derived from the E1, HDB3 link (Loop-Timed Clock)
Default Option Internal Clock
VCL-LD, E1 Voice Compression EquipmentVCL-LD, E1 Voice Compression Equipment
Slide 11
Orion Telecom Networks Inc. 2005
Digital Carrier Interface 256 Kbps (Fractional E1)Compressed - E1 (voice only application)
Number of E1 Interfaces 1 - Fractional E1 Interface @ 256KbpsNumber of DS-0s 4 (First Four Time-Slots)Conformity G. 703Frame Structure G.704Bit Rate 2048 Kbps ± 50 ppmCode HDB3Nominal Impedance 120 balanced (75 unbalanced - optional)Pulse Mask As per ITU (CCITT) Rec. G.703Output Jitter < 0.05 UI (in the frequency range of 20Hz to 100 KHzPermissible Attenuation 6 dB at 1 MHzReturn Loss at:51.2 KHz to 102.4 KHz >12dB102.4 KHz to 2048KHz >18dB2048KHz to 3072 KHz >14dBJitter Tolerance As per ITU (CCITT) G.823
Power Supply
Input DC voltage -48V DC ( nominal )Range of input -40V to -60V DC
Power Consumption Less than 20 Watts (at full load)
-48VDC Input Voltage Reversal Protection Provided (Standard)
93VAC-267VAC, 47Hz-63Hz
Auto-Sensing Optional (External Supply)
VCL-LD, E1 Voice Compression EquipmentVCL-LD, E1 Voice Compression Equipment
Slide 12
Orion Telecom Networks Inc. 2005
Digital Carrier Interface 384 Kbps (Fractional E1)Compressed - E1 (voice, fax & data modem support @ upto 33.6Kbps transmission)
Number of E1 Interfaces 1 - Fractional E1 Interface @ 384KbpsNumber of DS-0s 6 (First Six Time-Slots)
Conformity G. 703
Frame Structure G.704
Bit Rate 2048 Kbps ± 50 ppm
Code HDB3
Nominal Impedance 120 balanced (75 unbalanced - optional)
Pulse Mask As per ITU (CCITT) Rec. G.703
Output Jitter < 0.05 UI (in the frequency range of 20Hz to100 KHz
Permissible Attenuation 6 dB at 1 Mhz
Return Loss at:
51.2 KHz to 102.4 KHz >12dB
102.4 KHz to 2048KHz >18dB
2048KHz to 3072 KHz >14dB
Jitter Tolerance As per ITU (CCITT) G.823
Echo Canceller : Technical Specifications
Provides voice echo cancellation of up to 128ms
Conforms to ITU-T G.165 and ITU-T G.168
G.164 /G.165 disable tone detection
Non-Linear Processor with Comfort Noise Insertion
Narrow-Band Detector
Eliminates long echo tail.
VCL-LD, E1 Voice Compression EquipmentVCL-LD, E1 Voice Compression Equipment
Slide 13
Orion Telecom Networks Inc. 2005
Orion’s Orion’s ProductsProducts
E1, Voice & Data Drop-Insert Multiplexer
PRI ISDN (Q.931) Multiplexers
E1 Intelligent Channel Banks
E1 / T1 DCME (Digital Circuit Multiplication Equipment) - Voice Compression Equipment
Thin Route DCME
E1 / T1 Echo Cancellers
E1 / T1 Digital Cross Connect
T1 / E1 Converters
E3, 34Mbps Multiplexer
34Mbps Optical Line Transmission Equipment (OLTE)
STM 1 / STM 4 - SDH Equipment
Remote Asset Management Systems
VCL-LD, E1 Voice Compression EquipmentVCL-LD, E1 Voice Compression Equipment
Slide 14
Orion Telecom Networks Inc. 2005
VCL-LD, E1 Voice Compression EquipmentVCL-LD, E1 Voice Compression Equipment
Slide 15
Thank you for your attentionThank you for your attention
For more details visit us at our Web Site at
http://www.oriontelecom.com
16810, Avenue of Fountains, Suite # 108,Fountain Hills, AZ 85268, U.S.A.
Phone: +1 (480) 816-8672 Fax: +1 (480) 816-0115E-mail: [email protected]