General Information
Configurations
MAP-200 Optical Switch mOSW-C1 Installation and User Guide
Standard
June 2016
Document Number 22112369-120 R000
Page 22
2Xx2 Configuration
A
B
1
2
Figure 7: 2Xx2 Configuration
The 2Xx2 configuration allows a straight through input to output, A => 1 and B=> 2,
or a crossover input to output, A => 2 and B => 1.
Power Trim
Power Trim is a new option that can be selected with single-mode 1C versions with 4
or more output channels. It brings two new capabilities that are designed to simplify
integration and remote trouble shooting.
•
Bidirectional Power Monitor
The optical power is reported at the common port along with an indication of
the transmission direction. The bi-directional power monitor automatically
senses if the common is being used as an input or an output. In-line power
monitors can greatly simplify remote trouble shooting in distant factories. Due
to the hardware configuration, the bi-directional power monitor can report
different values even when the optical source is the same. When a signal
goes in from common a port (single channel), the reported power level is the
power before the switch, that is the true power going into the switch.
However, when signal goes in from multiple channel side, the reported power
level is the optical power after the switch, that is it is the output optical power
from the switch. The switch input power would be the reported power plus the
IL of the switch on that channel. If the switch is operated under trimmed
power (see the next bullet — “Loss Trim”), the input optical power can be
significantly higher than what was reported by the GUI. The dynamic range of
power monitor is about 65dB at 1550nm: from +10 dBm to -55 dBm. A
wavelength should be set on GUI for better accuracy. Please note, power
monitor option is not intended to accurately report optical power, an optical
power meter is recommended if an accurate power measurement is required.
•
Loss Trim
Through the use of a programmable Trim Index, the insertion loss of the
connected optical path may be increased by up to 20dB. The trimming
function is designed to simplify applications where general power levels need
to be set, but do not require exact precision. The Power Trim option offers
the flexibility of adjusting the input power level without using an additional
