8
MULTIMODE FOMS -ST AND -SMA
The MultiMode FOM is easy to install. After configuring the DIP switch,
simply connect the single-fiber and RS-232 cable to the FOM, plug the power
supply’s output cord into the unit, and plug the power supply into an outlet.
Figure 4-1 shows the location of the interface connections on the MultiMode
FOM’s rear panel.
4.1 Single-Fiber Connection
These short-range modems are designed to work in pairs. You’ll need one at
each end of a single 62.5-µm core, multimode fiber cable. Depending on the
data-rate setting you select, your cable can be a maximum of 2.5 or 5 km long.
Connect the fiberoptic cable to each MultiMode FOM using a single
connector (either ST or SMA type). Figure 4-2 below shows a closeup
of both connector types.
Figure 4-2. SMA and ST connectors.
SMA
ST
ALIGNMENT PIN
FACES DOWN
Figure 4-1. Rear panel of the MultiMode FOM.
RS-232 INTERFACE
POWER
FIBER
4. Installation
