JDS Uniphase DSAM-3500, Руководство пользователя

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Appendix A Specifications
DSAM Product Family Series-1500, -2500, -2600, -3500, -3600, -6000 Specifications
DSAM Help User Guide Rev. 001 297
Upstream Spectrum (Ingress Scan)
Spans Models ending in A, 4 to 65 MHz
Models ending in B, 4 to 45 MHz
Sweep Rate Less than 2 seconds
Display Scaling and Range 5 and 10 dB/division;
6 vertical divisions
Resolution Bandwidth 280 kHz
Sensitivity
a
-40 to +60 dBmV (typical)
Two-way Ranging Test
DOCISIS® Based DOCSIS® 1.0, 1.1, and 2.0
Upstream Transmit Range
and Diplexer Crossover
(DOCSIS® modes only) Models ending in A, 5 to 65 MHz 65/
96 MHz (min. downstream DOCSIS®
center freq. 100 MHz)
Models ending in B, 5 to 42 MHz 42/
88 MHz (min. downstream DOCSIS®
center freq. 91 MHz)
Upstream Modulation QPSK, 16 QAM, and 64 QAM as
instructed by CMTS
Transmitter Output At 25° C (77° F) maximum, +52 dBmV
with 64 QAM, +55 dBmV with 16
QAM, and +58 dBmV with QPSK (typ-
ical)
Downstream QAM Demodulation
Modulation Type 64, 128
c
, and 256 QAM, ITU-T J.83
Annex A, B, or C (selectable)
Input Range (Lock Range)
d
-15 to +50 dBmV total integrated
power from 55 to 1000 MHz
BER (Bit Error Rate)
e
Pre and Post FEC: 10
-4
to 10
-9
Table 47 Product Specifications (Continued)
Item Description
21128026 R001 DSAM Help User Guide.book Page 297 Thursday, February 5, 2009 2:02 PM