Simplex 4190-9010 — bi-directional fiber optic coupler that lets a Simplex fire alarm network fiber link run over one multimode fiber instead of two.
Simplex fiber optic media modules 4100-6057, 4010-9819 and 4190-6037 normally use two multimode fibers, one to transmit and one to receive. With a 4190-9010 at each end, network communications run over a single fiber with some reduction in distance. Simplex requires two couplers per connection, one at each node.
- Fiber: multimode graded-index, 50/125 or 62.5/125 µm, 850 nm
- Connectors: type ST; an ST-to-ST coupler (by others) makes the ST-to-ST joint
- Single-fiber distance: 7,650 ft (2.33 km) on 50/125, 8,200 ft (2.5 km) on 62.5/125
- Coupler loss 9.4 dB within a 21.4 dB budget
- For fiber optic media board 566-376 or 565-261, revision C or higher
Not a fiber modem: the multiple-signal fiber modems (4100-6072 to 4100-6075) already run over a single fiber. The 4120 duplex fiber media cards in the current Simplex network datasheet are different parts, and that sheet does not list the 4190-9010.
