Motorola SURFBOARD SVG2500 - Manual (Page 150)

16 SPECIFICATIONS
135
GENERAL
UPSTREAM
Modulation
Maximum Channel Rate
Bandwidth
Symbol Rates
Operating Level Range
A-TDMA
S-CDMA
Output Impedance
Frequency Range
8***, 16, 32***, 64***,128*** QAM or QPSK
30 Mbps**
200 kHz, 400 kHz, 800 kHz, 1.6 MHz, 3.2 MHz, 6.4 MHz***
160, 320, 640, 1280, 2560, 5120*** ksym/s
8 to 54 dBmV (32, 64 QAM),
8 to 55 dBmV (8, 16 QAM) ,
8 to 58 dBmV (QPSK)
8 to 53 dBmV (all modulations)
75 Ω (nominal)
5 to 42 MHz (edge to edge)
TELEPHONY
Line Type
Hook State Signaling
Maximum Line Length
(one-way)
DTMF Level
Sensitivity Range
Speech Coding
Line Termination
Loss Plan
Receive
Transmit
Loss Plan Tolerance
Ringing Wave Form
Ringing Crest Factor
Ring Trip (maximum)
2-wire
Loop start
500 ft (AWG 26/0.4 mm @ 65 °C)
0 and –20 dBm
64 kbps PCM, μ-law or A-law companding; support for G.711, G.726,
G.728, G.729, G.723.1, iLBC, and BV16/32 codecs
Configurable based on market needs
(D/A) 4 dB
(A/D) 2 dB (configurable based on market needs)
±1 dB; 60/50 Hz loss >20 dB (one-way) (referenced to off-hook loss at
1,004 Hz)
Quasi-trapezoidal
1.2 <CF <1.6
200 mS with 300 W termination
**Actual data throughput will be less due to physical layer overhead (error correction coding, burst
preamble, and guard interval).
***With A-TDMA or S-CDMA enabled Cable Modem Termination System (CMTS).