Atec DSAM-2500 User Manual
Digital Service Activation Meter
Acterna DSAM-2500
The Acterna DSAM-2500 (Digital
Service Activation Meter) is a lightweight, durable, handheld meter for
DOCSIS/EuroDOCSIS cable modem
installation. The meter enables
installation technicians to install and
service high-speed data and video
services while onsite. It features an
intuitive graphical interface complete
with an informative online help system.
Exclusive DSP, DOCSIS and analog technology provides great future flexibility.
Upgrading the meter can be as simple
as downloading a file from the Web
and installing it onto the device using
optional DSAM-PCsoftware. Additionally, cable operatorscan expand the
meter’s capabilities to meet the needs
of new technologies as they are added
to the network.
Highlights
– DOCSIS ver. 1.0 and 1.1 compatible
– Ranging and registration confirm
physical and network connectivity
– Quick QAM summary of digital
carrier performance (MER/EVM
and pre/post FEC BER)
– Install autotests allow preconfig-
ured automated tests for digital,
analog and DOCSIS channels
– Weather and shockresistant
enclosure; weighs less than 3 lb
(1.4 kg)
– 4 to 1000 MHz range analog
Signal Level Meter, 8 MHz and
6 MHz models
DOCSIS/EuroDOCSISinstall
capabilitiesinclude:
– In-service ranging with network CMTS
to prove physical upstream path
– Transmit margin displayed and
compared with limits for easy
Pass/Fail results
– Downstream QAM measurements
(average power level, MER/EVM,
and pre- and post-FEC BER tested
against limits)
– Multiple DOCSIS carriers handled
in a single autotest selection
– Configuration settings that allow
test flexibility based on network
deployment procedures:
“Range” stops at physical layer
verification results
“Range+Register” also returns IP
addresses for cable modem and
network servers
DSAM ranging capability uses the
DOCSIS transmission paths, downstream and upstream, to verify
performance from the install location.
Test results are compared against
limits set by network engineering.
DSAM registration capabilityfully
connects the DSAM internal cable
modem to the DOCSIS network.
Results display shows assigned IP
and network IP addresses as well as
any error messages encountered.
These tests assure network connectivity and sufficient physical layer
margins for reliable performance
even after the installer leaves the job,
thus resulting in fewer callbacks and
happier customers.
Digital Service Activation Meter (DSAM)
is a lightweight, durable, handheld
meter that includes extensive analog
and digital capabilities
SLM (signal level meter)
capabilities include:
– Ingress spectrum scan with zoom
for analyzing local upstream ingress
– Up to 12-channel miniscan that
can contain mix ofanalog and
digital channels
– Extensive channel plan flexibilityto
cover analog, digital and DOCSIS
channel parameters all in one plan
– Multiple video standards include
NTSC, PAL, SECAM – including
scrambled formats
– Multiple channel types include
single and dual audio, CW, QAM,
QPSK and others
Additional configurable parameters
include QAM standard (selectable,
ITU J.83 annex A, B or C), symbol rates,
inverted spectrum, signal bandwidths
and audio offset. These provide a high
degree of flexibility on hybrid systems
that mix modulation technologies and
video standards.
2
DSAM-2500
Physical path
verification
M
Registration and
other network
communications
C
LAN/WAN
T
S
Loading...