AMG Systems Ltd. reserves the right to make changes to this document without
notice. The information herein is believed to be accurate. No responsibility is
assumed by AMG for its use.
Page 1of 3 AMG2780R-DR-SF-HP
Instruction Sheet D15780-
01
AMG2780R-DR-SF-HP
Instruction Manual
2700 Series Repeater for use on a
Dual Redundant single fibre ring
The AMG2780R-DR-SF-HP is a rackmount repeater designed to operate in a single fibre dual
redundant loop. It is designed to plug into a standard AMG2000 or AMG2005 rackmount system.
Functional Description
The AMG2780R-DR-SF-HP receives an optical
signal from both a primary and secondary optical
input.
In normal operation where connection of both the
previous unit and the subsequent unit are OK, the
optical signal on both the primary and secondary
routes is regenerated on the respective optical
outputs.
If the primary optical input signal is not present,
the unit shut down the primary output. If the
secondary optical input is not present the unit will
shut down the secondary optical output.
2780R-DR-SF-HP
2700 optics (Primary)
1550nm
TX
RX
2700 optics (Secondary)
1310nm RXTX
Primary and Secondary
Route on the SameFibre
1550nm 1310nm
OPTO OUT
OPTO IN
Primary Signal Direction
Secondary Signal Direction
1550nm
1310nm
2780R-DR-SF-HP
AMG
PRIMARY OPTO SYNC
TX O ORX
POWER
O
SECONDARY OPTO SYNC
TX O ORX
POWER
O
Primary
Secondary
CH 5
CH 6
CH 7
CH 8 CH 4
CH 3
CH 2
CH 1
OPTO IN
OPTO OUT
OPTO OUT
OPTO IN
AMG Systems Ltd. reserves the right to make changes to this document without
notice. The information herein is believed to be accurate. No responsibility is
assumed by AMG for its use.
Page 2of 3 AMG2780R-DR-SF-HP
Instruction Sheet D15780-
01
Connections
Optical Connections
PRIMARY OPTO OUT
Connector............................................FC/PC
Primary Optical Launch Power ............-3dBm
Wavelength..........................................1550nm
Secondary Optical Sensitivity..............-21dBm
Optical Overload..................................-3dBm
Wavelength..........................................1310nm
PRIMARY OPTO IN
Connector............................................FC/PC
Primary Optical Sensitivity...................-21dBm
Optical Overload..................................-3dBm
Wavelength..........................................1550nm
Secondary Optical Launch Power.......0dBm
Wavelength..........................................1310nm
NOTE: The unit requires a minimum of 5dB optical loss between itself and adjacent units to
prevent overloading of the optical inputs.
Power Connection
Power supply.......................................from plug in connection on the 2000 or 2005 subrack
Power consumption .............................10 Watts max.
Indicators
Power...................................................Green – unit powered
Off – no power applied to unit
Primary Opto Sync TX.........................Green - Primary optical channel transmitting
Off - Primary optical channel not transmitting
Primary Opto Sync RX ........................Green - Primary optical channel receiving
Off - Primary optical channel not receiving
Secondary Opto Sync TX....................Green - Secondary optical channel transmitting
Off - Secondary optical channel not transmitting
Secondary Opto Sync RX....................Green - Secondary optical channel receiving
Off - Secondary optical channel not receiving
Physical Information
Dimensions
Height ..................................................3U Plug-in
Width....................................................14HP
Depth ...................................................170mm excluding connectors
Weight..................................................750grams
AMG Systems Ltd. reserves the right to make changes to this document without
notice. The information herein is believed to be accurate. No responsibility is
assumed by AMG for its use.
Page 3of 3 AMG2780R-DR-SF-HP
Instruction Sheet D15780-
01
Mounting Details
The unit is designed to be mounted within a 2000 or 2005 Subrack on standard card guides. Note the
AMG standard racks are supplied with guide rails every 7HP. In order to fit this unit in the subrack, 1
set of card guides have to be removed by pulling gently on the card guides.
The 2000 series subrack is fitted with a 50 watt power supply.
The 2005 series subrack is fitted with a 100 watt power supply
Safety
The 2700 series of products uses a Class 1 laser system in accordance with EN 60825-2:2000.
It is always advisable to follow good practice when working with optical fibre systems. This includes:
Do not stare with unprotected eyes or with any unapproved collimating device at fibre ends or
connector faces, or point them at other people.
Use only approved filtered or attenuating viewing aids
For other safety issues and advice on good practice associated with the optical fibres systems see EN
60825-2:2000 or your local safety officer.
Maintenance and Repair
There are no user serviceable parts within the AMG2700 products.
In case of problem or failure contact your local support centre or AMG Systems Ltd, Technical Support
Department on tel. +44 (0) 1767 600777.
See unit data sheet for full specification.
/