Specifications

Downstream Communication

Channel bandwidth

8 MHz

Modulation scheme

QPSK (QAM 4), QAM 64

Symbol rate

6.8 Mbaud, 6.875Mbaud, or 6.9 Mbaud

Channel bit rate (raw)

41.4 Mpbs (64 QAM and 6.9 Mbaud)

FEC

Reed-Solomon decoder (204,188)

Framing

MPEG, DSM-CC MPE, Direct IP, or MPE Ethernet encapsulation (Logical Link Control [LLC])

Receiver Input

Input level

42 to 70 dBµ V RMS

Frequency range

110 to 862 MHz

Tuning step size

62.5 kHz

Impedance level

75 Ohm

Return loss

7.5 dB¹

Upstream Communication

Modulation scheme

QPSK

Channel bandwidth

2 MHz

Symbol rate

1.544 Mbaud

Channel bit rate (raw)

3.088 Mbps (QPSK and 1.544 Mbaud))

FEC

Reed-Solomon encoder, (59, 53) corrects up to 3 of 53 bytes

Burst length

63 bytes + 1 byte guard

1 ATM cell per burst

Framing

ATM adaption layer (AAL) 5 Direct IP or AAL5 Ethernet Encapsulation (LLC)

Transmitter Output

Signal level

85-120 dBµ V RMS

Frequency range

5-65 MHz

Tuning step size

50 kHz

Impedance level

75 Ohm

Spurious in other channels

-45 dB²

Standards Compliance List

DVB-C (ETS 300 429)

DVB-RC (ETS 300 800, November 1998)

DVB-DATA (EN 301 192)

RFC 791 IP

RFC 792 ICMP

RFC 951 BOOTP

RFC 1483 Multiprotocol Encapsulation over AAL 5

RFC 1213, 1441-1445, 1447-50,
1452-SNMPv2c

RFC 1350 TFTP

RFC 2236 IGMPv2

IEEE 802.3 Ethernet 10BaseT

IEEE 802.2 LLC

EuroModem Specification³

Power

Supply

9 to 15 VDC

Power consumption

Maximum 15W

Safety

UL1950, CSA 22.2, EN 60950

EMC and Safety

Emission

EN 55022 Class B

Immunity

EN 50082-1

Safety

EN 60950

Dimensions and Weight

Dimensions (H x W x D)

Approx. 7.85 x 9.77 x 1.77 in.
(200 x 248 x 45 mm)

Weight

Approx. 1.8 lb (800 g) excl. power supply

Environmental

Operating temperature

5 to 40°C (41 to 104°F)

Storage temperature

-25 to 55°C (-12 to 131°F)

Humidity

0 to 90%, noncondensing

User Interface (Ethernet)

LAN interface

10 Mbps

Framing

IEEE 802.2, Ethernet2, 802.3 MAC

Connector

RJ-45

IP Stack

Based on Fusion IP Stack