Overview 2-15
SG 2000 Installation and Operation Manual
Model Description Function
SG2-MCB
Manual control
board
This board locally controls the ingress switch and
receiver/transmitter A/B redundant switching if the node is not
equipped with status monitoring.
SG2-SB/*
Strand bracket Bracket for hanging a strand mounted node.
SG2-PS
Power supply
Provides the +24 V and +5 V dc supply to the station. It has an
extended voltage range and is power-factor corrected.
SG2-PS2
Power supply
Provides the +24 V and +5 V dc supply to the station.
SG2-
SERCAB/*
Service cable A 6-fiber service cable that is available with SC/APC or
FC/APC connectors.
SG2-FE-
*/750
Forward
equalizers
Used to increase output tilt at one or more ports in a 750 MHz
system. They are available in 1 dB increments from 2 dB
through 6 dB.
SG2-FE-
*/870
Forward
equalizers
Used to increase output tilt at one or more ports in an 870
MHz system. They are available in 1 dB increments from 2 dB
through 6 dB.
SG2-IS
Ingress switch This switch enables the operator to troubleshoot without
shutting down the return path. It requires the use of either the
LL-SG2/* or the SG2-MCB.
SG2-LR
Lightwave
receiver
This receiver converts the received optical signal to
broadband RF.
DS-SG2-DRRB
Digital return
redundancy
board
This board provides the redundant input to a
DS-SG2-DRT/A-2X digital return transmitter. One DRRB is
used for each -2X transmitter.
SG2-*
Analog return
transmitters
Table 2-1 identifies and describes the five optical analog
return-path transmitters.
DS-SG2-DRT*
Digital return
transmitters
Table 2-2 identifies all models of the optical digital return-path
transmitters. Section 5, “Operation,” provides detailed
information and block diagrams for each series of digital
transmitters.
To Next Page
Loading...
