Waveware Adaptive Serial LED Clock User Manual download pdf (Page 10)

ALPHA Serial Clock Manual

Network configurations—Adding serial clocks to an Alpha

network

Alpha® serial clocks can be connected together with each other or in

a mix of Alpha

signs. Also, like an Alpha

sign, an Alpha

serial clock

must be terminated when it is the last device on a network.

In a network, one clock (or a PC attached to the network) is used to

synchronize all the other clocks to the same time. In an network

composed of all Alpha

serial clocks, one clock should be set to master

mode and the other clocks set to slave mode

Table 1: Networking Alpha

serial clocks

(Example 1 — A network of all clocks)

In this example all-clock network, one of the clocks must be set to master mode. All the other clocks on the network

must be set to slave mode. Also, the first and last clocks on the network must be terminated.

Item Part # Description

A 1088-9107

End-of-line (EOL) terminator. (An EOL must be plugged into the left—as you face the

back of the clock—RJ11 phone jack.)

B — Ferrite (ferrite end towards sign)

1088-8624 8 foot, 4-conductor RS485 cable

1088-8636 1 foot, 4-conductor RS485 cable

D 4331-0602 Modular Network Adapter

E 1088-8000 RS485 cable

Alpha

serial clocks

To right

phone jack

To either

phone jack

To either

phone jack

To right

phone jack

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 16 17 18

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Waveware Adaptive Serial LED Clock User Manual Page 10