Modem Mode - Promax 27 Manuel

In order to modify the rest of features of the channel plan, you will need the
RM-TELECOM software.
To return to the previous menu (EDIT CHANNEL PLAN) press key BACK [F1] or
[F5]
To exit the menu EDIT CHANNEL PLAN and return to the previous screen
(CONFIG) press key BACK [F1] or [F5].

4.2.3 MODEM Mode

To access the MODEM mode in order to measure downstream, upstream and
services over IP :
1.- Press key
2.- Press softkey MODEM [F1].
3.- It appears the initial screen in MODEM mode (Figure 9.-).
To change between displaying downstream data or the constellation diagram
press IQ / DOWN [F2].
To enable or disable the constellation diagram press the selection key [8]
The measurement of power in digital channels is done by a method of integration,
with a bandwidth defined by the channel or the user.
The uplink, (UPSTREAM) shows the channel that the equipment uses in the
communication with the CMTS (Cable Modem Termination System).
Page 22
[13].
DOCSIS/EuroDOCSIS ANALYSER
UPSTREAM:
99 28
PWR ATT
dBuV dB
FR: 27.05 MHz/5
BW: 3.3 MHz
MOD: QAM64
SR: 1280 ksym/s
STARTING
IP NETWORK IQ SPECTRUM
Figure 9.- Initial MODEM Screen.
USER'S MANUAL. PROMAX-27
01:43:09
DOWNSTREAM:
42 34
PWR MER
dBuV dB
FR: 254.50 MHz
CH: S14/CCIR
BW: 7.00 MHz
MOD: QAM64
SR: 2560 ksym/s
PreBER: 1.0E-8
LOGGER FREQ
09/2010