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IEEE 802.11agn Interface Unit Type M19 (D3BR-01)
2.27.2 INSTALLATION PROCEDURE
When installing this option, turn OFF the main power and unplug the power cord from the wall socket. If installing without turning OFF the main power, an electric shock or a malfunction may occur.
Do not put your hand into the controller box. It will result in a malfunction or injury.
Before doing any work, touch a metal object to discharge static electricity from the body. There is a possibility that the extension wireless LAN board may malfunction due to static electricity.
When using wireless LAN (IEEE802.11 b/g/n:2.4-GHz band), this radio product uses the 2.4-GHz band. Check that industrial, scientific and medical devices using the same frequency bands, such as a microwave oven or a cordless telephone, are not used nearby.
If there is interference, communication may become unstable. Check that there are no devices likely to cause interference in the surrounding area.
Attaching the Boards
1. Remove the slot cover [A].
2. Insert the extended wireless LAN board [A] into the slot 
×2)
Press the extended wireless LAN board firmly in, and check it is firmly connected.