Specifications
Chapter 1 Introduction Installation and Operation Manual
1-4 Functional Description Optimux-108 Ver. 6.1
1.3 Functional Description
Printed Circuit Boards
Optimux-108 contains the following printed circuit boards:
• Main board, including two tributary interfaces (BNC interface board or RJ-45
connectors) and an optional user port. This user port can be a V.35 port
operating at fixed rate of 2.048 Mbps or an Ethernet port operating at up to
100 Mbps
• One or two uplink interface boards (A and B)
• One or two power supplies (A and B):
AC/DC wide-range power supply (100-240 VAC or -40 to -72 VDC)
Fiber Optic Uplink Interface
The fiber optic interface provides a secure link in hazardous or hostile
environments, increasing the maximum connection range, and achieving immunity
against electrical interference and protection against the harmful effects of
ground loops. To optimally meet a wide range of system requirements, the fiber
optic interface can be ordered for operation over 62.5/125 micron multimode
fibers (typical attenuation 3.5 dB/km at 850 nm), as well as over low-loss
9/125 micron single mode fibers (typical attenuation 0.4 dB/km at 1310 nm, and
0.25 dB/km at 1550 nm).
The fiber optic interface is hot swappable, allowing for quick and easy
replacement in the field.
Technical Characteristics
Table
1-1
provides information on the characteristics of the optical subsystem,
including the maximum range over typical fiber optic cable. The maximum range
values given in the table below assume a margin of 3 dB.
Table
1-1 Fiber Optic Interface Characteristics
Wavelength
[nm]
Fiber Type
[μm]
Transmitter
Type
Typical
Output
Power
[dBm]
Receiver
Sensitivity
[dBm]
Typical Max.
Range
[km miles]
Connector
Type
850 62.5/125 multimode Laser (VCSEL) -6 -34* 4.5 2.8 ST, SC, FC/PC
1310 9/125 single mode Laser -12 -34 47 29.2 ST, SC, FC/PC
1310 62.5/125 multimode LED -18 -32 7 4.3 ST, SC
1310 9/125 single mode Laser
[long haul]
-2 -34 72 44.7 ST, SC, FC/PC
1310
Transmit/Receive
9/125 single mode
Single fiber
Laser [SF3] -12 -27 20 12.4 SC/APC only
1310/1550
Transmit/Receive
9/125 single mode
Single fiber
Laser WDM
[SF1]
-12 -34 47 29.2 SC