4EVAC 4E-FM Руководство по установке и эксплуатации - Страница 5
Просмотреть онлайн или скачать pdf Руководство по установке и эксплуатации для Микрофонная система 4EVAC 4E-FM. 4EVAC 4E-FM 12 страниц. Fireman microphone station for the compact 500 voice evacuation system
Печатать страницу
Hacousto Holland bv
Industrieweg 87
2651BC Berkel & Rodenrijs
4E-FM installation and user guide
4.1.1. Network ports
4E-FM offers 2 L-Net ports (RJ-45) for network connections to the C500 main unit and distributed parts of
the 4EVAC Voice Evacuation System. Both L-Net ports are equal, therefore there is no difference which port
is connected to which side of L-Net daisy-chain.
4.1.2. Redundant link
If you need to make a redundant L-Net connection to the Compact 500 main unit, connect both L-Net
ports of the device to two L-Net ports on the C500 main unit. You can choose any L-Net port on the C500
main unit. This creates a double daisy-chain of the redundant A/B power and data link to the device and
ensures fail-safe networking in case of single cable or port failure.
Both spurs of the redundant A/B link may be populated with other L-Net devices.
NOTE: The device is equipped with a power link jumper, which, by default, is in CLOSED position (pass-
through L-Net power bus over daisy-chain). In order to create a redundant link, the jumper must be moved
to the OPEN position. The device will be then immune to a single port short-circuit of the power bus.
Page 5 of 12
L-Net ports on the back side of 4E-FM
Location of power link jumper
Author:
DD