Linak CARELINE MJB, Руководство пользователя, Страница: 10 / 24

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MJB - GATEWAY variant, 504-01 & 504-02 :
The MJB is a simple gateway interface, which can connect the bed to the infrastructure
of the hospital or nursing homes. The Gateway can be used in combination with an
Out of Bed Sensor, which makes it possible to indicate if the patient leaves the bed.
The Gateway can also be used as a service/nurse call system. Please note it is only to be
used as a guided system, not for emergency issues.
Standard functionality:
The MJB - Gateway consist of two relays, which are connected through Port 5 on the
MJB. This can be made with the special cable 0964140 (Modular plug - Open end)
There are as standard 2 confi gurations, 504-01 and 504-02, see description on the
next pages.
Relay1: NC (normally closed) = Pin 2 + Pin 1 / NO (normally open) = Pin 2 + Pin 3
Relay2: NC (normally closed) = Pin 5 + Pin 4 / NO (normally open) = Pin 5 + Pin 6
Relay 1 is NO when connected to the mains and NC when no mains, this means
the relay is “active”, when connected to the mains (closed loop). The Closed Loop
principal is to ensure that an alarm is sent if power is missing on the bed. When the
mains is disconnected (power is missing), the relay will go from NO to NC, which will
automatically result in an alarm (status indicator) on the OpenBus™.
Relay 1 can be activated via the patient control (Key1 / Key4) or the attendant control
(Key2 / Key3). When a key is activated, the relay will switch state from NO to NC for 2
seconds. After 2 seconds the relay will automatically change state from NC to NO.
The status of the relay is indicated on the OpenBus™ and can be used for switching
on an LED.
Relay 2 is as default NC, with or without mains, (Open Loop)
Relay 2 can be activated via the patient control (Key 1) or the attendant control (Key 2
/ Key 3).
When the relay is activated, it will switch from NC to NO for 2 seconds. After 2
seconds the relay will automatically change state from NO to NC.
The status of the relay is indicated on the OpenBus™ and can be used for switching
on an LED.
Port 5
Port 1
OpenBus connetion
Port 5: Relay connetions
Relay 1:
- Pin 1
- Pin 2
- Pin 3
Relay 2:
- Pin 4
- Pin 5
- Pin 6
NC
NO
NC
NO