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188 Appendix D: Networking Guide AccuLazr™ AL5010 Product Line Manual

Controller/Client Communications

Up to fourteen (14) AL5010s can be configured to operate together as a

single unit. All communications between readers is accomplished over an

Ethernet network.

In this configuration, one AL5010 must be set up as a Controller. The

Controller initiates connections with the remaining readers, configuring them

to operate as Clients. The trigger input (such as a photoeye) is only

connected to the Controller.

Setting up AL5010s for a Multi-Reader Network

Wiring

If only two readers are to be communicating, and the Ethernet network is not

needed for diagnostics or host communications, the readers can be

connected directly with a CAT6 network cable. However, it is recommended

to use an network switch when connecting any combination of scanners, so

that diagnostics can be performed while the system is running.

Tachometer and trigger are connected to the controller AL5010. The

controller AL5010 transmits speed and trigger messages to the Clients over

the network.

Configuration

1. All readers should be operating on the network with unique IP

addresses.

2. All AL5010s that are to communicate together should be assigned the

same Group Number. A Group Number of zero (which is the default)

disables the Controller/Client capability.

3. The Number of Client Readers should be changed from zero on the

Controller in order to identify this unit as the Controller. After being

configured as a Controller, it will broadcast messages onto the network

to discover the specified number of Clients.

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