Switches 2 & 3: RTS/CTS Delay
The settings for Switches 2 & 3 determine whether the RTS/CTS
delay will be 0 mS, 79.5 mS or 9.5 mS.
*Factory Default
Switch 4: Enable Carrier Detect LED
The setting for Switch 4 determines whether the Model 1110
“carrier detect” LED indicator is enabled . When enabled, the carrier
detect LED will glow red if a proper carrier frequency is recognized.
*Factory Default
Switches 5 through 8 : Future Use
0 mS
OFF
OFF
79.5 mS
ON
OFF
9.5 mS
ON*
ON*
RTS/CTS Delay
SW2
SW3
4.0 INSTALLATION
The Model 1110 is easy to install. After configuring the DIP
switches, simply connect the two fiber cables and then connect the
RS-232 interface. Figure 3 (below) shows the location of the fiber
connections on the Model 1110’s rear panel.
4.1 FIBER CONNECTIONS
The Model 1110 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 1110 using either an ST or an SMA connector.
Figure 4 (below) shows a close up of each of these connector types.
4.2 RS-232 CONNECTION
Because the Model 1110 is designed to behave as either a DCE or
a DTE device, it does not need special cables to operate. Always use a
straight-through
RS-232 cable.
5
6
Figure 3. Rear panel of the Model 1110, showing fiber connections
Figure 4. Close up of ST and SMA connections
ST
SMA
Alignment pin
faces down
Fiber
Fiber
LEDs
Carrier Detect LED
SW4
Enabled
ON*
Disabled
OFF