Cisco Cisco Compact EGC Dual Output Amplifier A93270 安装指南
10
Installation and Setup Instructions of Compact EGC Amplifier 93451
4027571 Rev
B
Mounting Instruction
, continued
ROSA Element Management System
Monitoring of the unit requires the installation of the transponder type 91051 or 91063 in the
unit. The transponder will communicate back to the headend by means of the reverse path.
The transponder signal is received at the test point at output. The level measured by the
transponder will be attenuated by approximate 33 dB relative to the output signal at output.
The transponder transmitter level is adjusted to the same level as the other reverse signals.
The level from the transponder will be attenuated by approximate 20 dB at the reverse path
since it is inserted with a 20 dB coupler.
unit. The transponder will communicate back to the headend by means of the reverse path.
The transponder signal is received at the test point at output. The level measured by the
transponder will be attenuated by approximate 33 dB relative to the output signal at output.
The transponder transmitter level is adjusted to the same level as the other reverse signals.
The level from the transponder will be attenuated by approximate 20 dB at the reverse path
since it is inserted with a 20 dB coupler.
With a transponder it is possible to monitor and control different parameters in the unit. The
built-in reverse path switch can be controlled in order to locate ingress noise in the reverse
path – This can be useful in the search for errors in larger networks.
built-in reverse path switch can be controlled in order to locate ingress noise in the reverse
path – This can be useful in the search for errors in larger networks.
Programming of a Compact Transponder type 91051 or 91063 is done by using the Handheld
Terminal 91200.
Terminal 91200.
Fuses
Fuse type
Description
P/N
T5AH250V
5AT, for 24 to 65 V
1005109
T10AL250V
10 AT, for input/output port
A38016
Notes: All fuses must be replaced by a similar type.