EXFO FTB-9100 for FTB-500 Optical Switch - Manual (Page 8)

Introducing the FTB-9100 Optical Switch
2 FTB-9100
Basic Switching Principles
The FTB-9100 Optical Switch supports local control (via the ToolBox
software) and remote control (through GPIB, RS-232, or Ethernet TCP/IP
using SCPI commands or the provided LabVIEW drivers). For more
information, refer to the FTB-500 user guide.
Basic Switching Principles
The switch ports of 1 x N optical switches are numbered on the front panel,
while the common port is identified as such.
These switches are bidirectional. This means that the optical signal can
either enter through the common port and be directed toward any switch
port, or enter through any switch port and then be directed toward the
common port.
Switch ports
Common port
1 x N Optical Switch Principle