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Automation & Control Modicon Quantum automation platform

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2<br />

Topologies (continued) <strong>Modicon</strong> <strong>Quantum</strong> <strong>automation</strong><br />

<strong>platform</strong> 2<br />

I/O architectures<br />

Remote I/O<br />

Presentation:<br />

page 2/6<br />

2/8<br />

Line length max.:<br />

15 km (9.3 miles)<br />

Line length max.:<br />

10 km (6.2 miles)<br />

Tap with 52-0422-000<br />

trunk terminator<br />

Characteristics:<br />

page 2/9<br />

490 NRP 954 00<br />

fiber optic drop<br />

490 NRP 954 00<br />

fiber optic drop<br />

RG-11 coax<br />

trunk cable<br />

RIO drop 1<br />

RIO drop 2<br />

Point-to-point RIO communications with fiber optic repeaters<br />

Fiber optic repeaters are available to enhance network noise immunity and<br />

increase cable distance to as much as 15 km (9.3 miles). These optic repeaters<br />

convert the twisted-pair cable to standard 62.5/125 µm fiber optic while maintaining<br />

the full dynamic range of the network.<br />

<strong>Quantum</strong> head-end CPU with 140 CRP 931 00 adapter<br />

RG-11 coax trunk cable<br />

RG-6 coax drop cable<br />

Fiber optic Rx and Tx cables<br />

RIO drop 1 RIO drop 2 Last RIO drop<br />

Tap<br />

RG-6 coax<br />

drop cable<br />

Tap Tap with<br />

52 0422-000<br />

trunk terminator<br />

A “self-healing” ring topology with fiber optic repeaters<br />

Multiple 490 NRP 954 00 fiber optic repeaters can be interconnected in a closed loop<br />

ring so that if a break occurs anywhere in the ring the network can reconfigure itself.<br />

The RIO signal is sent down both legs of the ring by the drop repeater to the head<br />

repeaters. When a signal is received on one Rx line, the other Rx channel is blanked,<br />

this prevents the same signal from being transmitted twice in the ring. The maximum<br />

length of fiber cable allowed in a self-healing ring is 10 km (32 000 ft).<br />

Terminated<br />

tap<br />

Terminated<br />

tap<br />

Terminated<br />

tap<br />

References:<br />

pages 2/10 and 2/11<br />

Terminated tap<br />

Repeater<br />

Repeaters<br />

<strong>Quantum</strong> head-end<br />

Drop repeater<br />

RIO drop 3<br />

Repeater<br />

RIO drop 4<br />

Terminated<br />

tap

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