Switch S1-3: Carrier Control Method
The setting for switch S1-3 determines whether the carrier is
“constantly on” or “controlled by RTS”. This setting allows for operation
in switched carrier or hardware handshaking applications.
S1-3
Setting
Off
Constantly on
On
Controlled by RTS
Switch S1-4: Factory Use Only
This switch is
reserved for factory use and must remain in the
OFF position.
S1-4
Setting
Off
Normal Operation
On
Not a Valid Setting
4.0 INSTALLATION
The Model 1110A is easy to install. After configuring the DIP
switches, simply connect the two fiber cables and then connect the
RS-232 interface. Figure 6 (below) shows the location of the fiber
connections on the Model 1110A’s rear panel.
4.1 FIBER CONNECTIONS
The Model 1110A short range modems are designed to work in
pairs. You will need one at each end of a dual fiber cable. This cable
connects to each Model 1110A using either an ST or an SMA
connector. Figure 7 (below) shows a close up of each of these
connector types.
7
8
Figure 7. Close up of ST and SMA connections
ST
SMA
Alignment pin
faces down
Figure 6. Rear panel of the Model 1110A, showing fiber connections
