Cisco Model GS7000 4-Port Node 1 GHz with 42 54 Split Installation Guide
Equipment Description
OL-29643-02
11
Module Description
Reverse
Configuration
(cont'd)
Configuration
(cont'd)
The 4x4 Reverse Configuration Module with auxiliary reverse
RF injection routes reverse inputs from Port 1 to Transmitter 1,
from Port 2/3 to Transmitter 2, from Port 4 to Transmitter 3,
and from Port 5/6 to Transmitter 4. An RF signal from an
external source can optionally be injected and coupled with
reverse RF inputs from Ports 3/6 and routed to Transmitter 1.
(Note that this module is typically installed when using bdr
multiplexing digital reverse modules. Since the digital reverse
module occupies the physical space that transmitters 3 and 4
normally occupy in the node base, this reverse configuration
module is typically used with a 6-port optical interface board.)
RF injection routes reverse inputs from Port 1 to Transmitter 1,
from Port 2/3 to Transmitter 2, from Port 4 to Transmitter 3,
and from Port 5/6 to Transmitter 4. An RF signal from an
external source can optionally be injected and coupled with
reverse RF inputs from Ports 3/6 and routed to Transmitter 1.
(Note that this module is typically installed when using bdr
multiplexing digital reverse modules. Since the digital reverse
module occupies the physical space that transmitters 3 and 4
normally occupy in the node base, this reverse configuration
module is typically used with a 6-port optical interface board.)
Optical
Receiver
Receiver
This module converts an optical signal from the headend into a
forward path RF signal. An SC/APC fiber connector is
standard. SC/UPC, FC/APC, and optical connections are
available. Optical power, test points, and status LEDs are
provided.
forward path RF signal. An SC/APC fiber connector is
standard. SC/UPC, FC/APC, and optical connections are
available. Optical power, test points, and status LEDs are
provided.
Optical
Transmitter
Transmitter
This module converts reverse path RF signals from the network
into an optical signal. An SC/APC fiber connector is standard.
SC/UPC, FC/APC, and optical connections are available.
Multiple transmitter options are available such as uncooled FP,
uncooled DFB, 1550 ITU, and bdr. Optical power, test points,
and status LEDs are provided.
into an optical signal. An SC/APC fiber connector is standard.
SC/UPC, FC/APC, and optical connections are available.
Multiple transmitter options are available such as uncooled FP,
uncooled DFB, 1550 ITU, and bdr. Optical power, test points,
and status LEDs are provided.
Optical
Amplifier
(EDFA)
Amplifier
(EDFA)
Erbium-doped fiber amplifier modules are available in two
categories: broadcast and narrowcast (gain-flattened). EDFAs
are available in 17 dBm, 20 dBm, and 22 dBm for broadcast
constant output power. A 17 dBm, 20 dBm and 21 dBm
narrowcast constant gain EDFA version is available to fit any
architecture for requirements like DWDM narrowcasting. EDFA
modules are single-wide, single-output devices. The modules
mount in receiver or transmitter slots on the optical interface
board in the node lid using a reversible pin adapter. The EDFA
is monitored and controlled by the Status Monitor/Local
Control Module in the node.
categories: broadcast and narrowcast (gain-flattened). EDFAs
are available in 17 dBm, 20 dBm, and 22 dBm for broadcast
constant output power. A 17 dBm, 20 dBm and 21 dBm
narrowcast constant gain EDFA version is available to fit any
architecture for requirements like DWDM narrowcasting. EDFA
modules are single-wide, single-output devices. The modules
mount in receiver or transmitter slots on the optical interface
board in the node lid using a reversible pin adapter. The EDFA
is monitored and controlled by the Status Monitor/Local
Control Module in the node.
Optical Switch
The optical switch module is used for switching the input of an
EDFA module from a primary signal to a backup or secondary
signal. The module mounts in receiver or transmitter slots on
the optical interface board in the node lid using a reversible pin
adapter. The switch is monitored and controlled by the Status
Monitor/Local Control Module in the node.
EDFA module from a primary signal to a backup or secondary
signal. The module mounts in receiver or transmitter slots on
the optical interface board in the node lid using a reversible pin
adapter. The switch is monitored and controlled by the Status
Monitor/Local Control Module in the node.