Operating instructions

2-12 Overview
Options and Accessories
The factory ships the MBV3-100* as a fully functional unit, but you must configure it
appropriately for the field location requirements. You must install the correct forward equalizer
or broadband cable simulator and input pad to place the unit in service. Section 3, “Amplifier
Setup” provides information to assist you in this task. Use model JXP-*B pads to control field
signal levels. To compensate for temperature, install the VADU or VQADU before placing the
MBV3-100* in service. You can install other items such as return thermal attenuators or
ingress control switches at your discretion, but these options do not render the MBV3-100*
inoperative if they are not included.
Table 2-1 provides a comprehensive list of options and accessories for the MBV3-100*. See
Section 3, “Amplifier Setup,” or the Motorola online product catalog for additional information.
Table 2-1
MBV3-100* options and accessories
Model Description Function
VADU-*
Vertical Automatic Drive Unit This board automatically controls amplifier output levels
that change with cable attenuation and hybrid output.
The selection of a pilot frequency is required.
VQADU-*
Vertical QAM Automatic Drive
Unit
This board automatically controls amplifier output levels
that change with cable attenuation and hybrid output.
The selection of a pilot frequency (QAM modulated
digital channel) is required.
SFE-100-*
Starline Forward Equalizer This 1 GHz equalizer compensates for cable properties
in 1 dB increments from 0 dB to 22 dB. You must install
the appropriate value.
SRE-*-*
Starline Return Equalizer This bandwidth specific equalizer compensates for
cable attenuation in 1 dB increments from 0 dB to
12 dB for S-split (2 dB increments for all other splits).
You must install the appropriate value.
SCS-*
Starline Cable Simulator This simulator compensates for cable properties. You
must install the appropriate value.
JXP-*B
Fixed attenuator This pad attenuates excessive input signal and can be
used to adjust amplifier gain. It is available in 1 dB
increments from 0 dB to 26 dB. You must install the
appropriate value.
JXP-TH*C
Thermal attenuators This option compensates for gain changes with
temperature in the return path.
FTEC
Fast Transfer Electronic
Crowbar
This accessory is used for over voltage protection.
ICS-II
Ingress Control Switch This option enables remote monitoring, isolation, and
reduction of ingress on the return path by providing
signal attenuation of 6 dB or cutoff of 38 dB typical. The
unit is shipped with a jumper in this location. To control
the ICS, you must install the LIFELINE status monitor
available from AM Networks.
JXP-RC100
High-Band Equalizer Enables high-end correcting of plant roll-off.
JXP-RPC
Return Path Correction Board This optional board provides additional flatness
response correction in the return path for systems that
must meet especially stringent return-path flatness
requirements.
MBV3-100* Installation and Operation Manual