4038501 Rev C
Introduction
1-5
Plug-in Modules
Modules
The amplifier is equipped with different plug-in locations for the input splitter,
diplex filter, equalizer, attenuator, and transponder.
Input Splitter/Output Splitter
Insert an input splitter, type A77041 through A77043. If an asymmetric splitter
(bridger) is used, the largest attenuation at the output (OUT) is obtained. If only a
signal at input (IN) is requested, jumper type A74089.10 should be used.
AUX Equalizer/Attenuator
Insert an equalizer or attenuator to adjust the amplifiers for impairments in the cable
network, if required. The equalizer type is A74100.10xxx, inverse equalizer type is
A74190.10xxx, and attenuator type is A77150.100xx. If no equalization /attenuation
is requested, 0 dB link, type A74069.10 should be used.
Diplex Filters
The following filters can be selected depending on the required frequency split.
Frequency split
Input
Output
42/54 MHz
4008154
4008155
65/87 MHz
589690
589691
AGC Module (optional)
AGC module 4031283 can be installed to monitor and control the output level of the
amplifier. The AGC module also provides downstream Auto Alignment, and has
three LEDs to indicate its status. For more information about installing the AGC
module, see
Compact Automatic Gain Control Module for Compact EGC Amplifier
Mounting Instruction
, part number 4036171. For more information about operating
the AGC module, see Chapter 3 of this document.
Reverse Equalizer
Place an equalizer, type A74141.1042 (42 MHz) or A74141.1065 (65 MHz) in the plug-
in slot for the reverse path equalizer, to select the desired reverse tilt frequency.
SMC Transponder (A91051) or HMS Transponder (A91067)
Use transponder, type A91051 or A91067, to monitor the amplifier output level,
temperature, power supply, etc., via the ROSA network management system.
Splitter
IN
OUT
OUT 1
OUT 2
A77041.10
3.5 dB
3.5 dB
3.5 dB
3.5 dB
A77042.10
6.0 dB
2.0 dB
2.0 dB
6.0 dB
A77043.10
10.5 dB
1.0 dB
1.0 dB
10.5 dB
A74069.10
N/A
N/A
0 dB
N/A
A74089.10
0 dB
N/A
N/A
0 dB
