Dhg544b, Technical specifications, Voip cable modem – Technicolor - Thomson DHG544B User Manual

Page 2: Standards / certifications, Receiver, Transmitter, Telephony features, Voip call control, Pc compatible

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Technical Specifications

DHG544B

VoIP

Cable Modem

Standards / Certifications



Data

DOCSIS 2.0 certified



Voice

PacketCable 2.0 certified



CMTS Interoperability

Any qualified DOCSIS CMTS

Receiver



Downstream Modulation

QAM 64/256



Downstream Frequency Range

88-860 MHz , 1GHz tuning

capabilities



Maximum Downstream Data

Range

30.34/42.88 Mbps

(QAM 64/ QAM 256)



Input Signal Level Range

-15 to +15 dBmV (QAM 64)

-15 to +15 dBmV (QAM 256)



BER

<1x10-8 @ C/N=23,5dB, QAM 64

with FEC,

<1x10-8 @ C/N=30dB, QAM 256

with FEC,

received power = -6dBmV

to +15dBmV

<1x10-8 @ C/N=33dB, QAM 256

with FEC,

received power = -15dBmV to

–6dBmV



Input Impedance

75 Ohm

Transmitter



Upstream Modulation

QPSK and 16 QAM



Additional Upstream Modulation

Types

QAM 8/32/64 for A-TDMA and

QAM 128 for S-CDMA channels



Upstream Frequency Range

5-42 MHz



Maximum Upstream Data Range 30.72 Mbps (QAM 64)



Output Signal Level Range

A-TDMA:
+8 to +58 dBmV/QPSK
+8 to +55 dBmV @ QAM 8/16
+8 to +54 dBmV @ QAM 32/64
S-CDMA:
+8 to +53 dBmv/All



Output Impedance

75 Ohm



Channel Bandwidth

Programmable (200*N KHz)

N=1, 2, 4, 8, 16, 32



Automatic Level Adjust

yes



Gain Control Range

50dB



Frequency Stability

±

5 kHz

Telephony Features



Audio Codecs

PCM A-law, PCM

μ

-law, G.729,

G.729a, G.729e,

G.728, iLBC and BV16



Multi-line Phone Support

Yes, Two phone lines, three-party

conference calls, can support two

complex voice codecs simultaneously



Fax Relay

T.38



DTMF Tone relay

RFC2833



Caller ID

Type I and Type II



CLASS features

BASIC and Extended CLASS

features

VAD (Voice Activity Detection)

yes

CNG (Comfort Noise Generation)

yes

Echo cancellation

G.165/G.168 up to 16ms

Packet Tone

DTMF generation/Call Progress

Generation/Custom Tone Generation

Call discrimination

Fax and Modem Detection

Telephony interface capabilities

Loop-back and on demand diagnostic

Modems

Up to V.90 (38.5kbps)

RFC2833 DTMF Tone relay

Enabled/disabled via SNMP and

Telnet

REN

5 REN

Pulse dialing

DTMF tones to pulse tones

conversion and pulse to DTMF tones

conversion

VoIP Call Control

RTP layer

RFC1889/RFC1890

RTCP statistics collection

yes

PacketCable Protocols

Protocol (PKT-SP-EC-MGCP)

PC Compatible



CPU

486DX 66MHz

(Pentium Preferred)



Memory

RAM 16MB (32MB Preferred)



Operating Systems

Windows 7, Vista, XP,

Me and 2000



Available Disk Space

76 MB



Sound Card

16-Bit



Video

VGA (SVGA Preferred)



Ethernet Port

10/100 Base-T



Drive

CD-ROM

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