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Optical ModuleBus Extension can be connected to the TB815 via the TB810
ModuleBus Optical Port unit for connection of 1 to 7 additional I/O clusters.
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When the next MTU is located away from the previous MTU, or from the TB815
Interconnection Unit, then a TK801V0xx ModuleBus Extension cable must be used.
The previous MTU will require a TB805 Cable Adapter-out to be plugged into the
ModuleBus-out connector. The TK801V0xx cable is then connected to the TB805
adapter. The next MTU will have a TB806 Cable Adapter-in plugged into the
ModuleBus-in connector and then connected to the other end of the ModuleBus
Extension cable (see Figure 2-6).
The TB805/TB806 ModuleBus Cable Adapter-Out/In adapters mount on the DIN-
rail. Each has a latch that locks it to the rail. There is also a grounding spring that
connects it to the DIN-rail. The latch can be released with a screw driver and the
adaptor moved toward or away (for removal) from the MTU.
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