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<strong>Tunstall</strong> <strong>GmbH</strong>, Orkotten 66, D-48291 Telgte, www.tunstall.de<br />
Call/presence combination bus (RAB), order no. 19 0701 00<br />
The call/presence combination bus (RAB) for nurse call systems<br />
CONCENTO PLUS type is used by staff. It includes a green<br />
presence button and a red call button as well as a buzzer for<br />
signalling forwarded calls. The RAB controls all room functions<br />
according to the German standard DIN VDE 0834.<br />
It is possible to use the RAB in an existing nurse call system<br />
„Concento“ type, if it is connected to a ward bus with a group<br />
electronic only of order no.10 0700 10.<br />
A 4-pole and a 12-pole connector included with delivery.<br />
Dimensions (HxWxD): approx. 71 x 71 x 24 mm<br />
Weight incl. central plate and frame: approx. 75 g<br />
Standby current consumption: approx. 10 mA at 24 V DC<br />
Note! The complete installation of the system is<br />
described in the <strong>Technical</strong> <strong>Manual</strong>.<br />
Caution! Electrostatic sensitive components<br />
The printed circuit board includes electrostatic sensitive<br />
components. Therefore avoid touching.<br />
Mounting<br />
Wall mounting on 1-gang back box.<br />
1. Strip the connection cables to the appropriate length. Remove<br />
the cable shield and ground wire up to the cable sheath.<br />
2. Attach the wires according to fig. D to both connectors.<br />
3. Set the three DIP switches (refer to fig. A) according to Fig.<br />
D.<br />
4. Plug both wired connectors to the connection field 7.<br />
5. Screw the RAB 4 with the back box screws 3 to the back<br />
box 5.<br />
6. Insert the central plate 1 in the frame 2.<br />
7. Press the central plate 1 together with the frame 2 onto the<br />
RAB, until it clicks into place.<br />
Dismantling<br />
1. Lever off the frame 2 together with the central plate 1 from the<br />
wall using a screw driver, see fig. C.<br />
2. Unscrew the back box screws 3 and remove the RAB 4 from<br />
the back box.<br />
3. Unplug both connectors from the rear side of the RAB 4.<br />
00 8814 03, 10/12 (Rev. 4.0) 1<br />
<strong>Technical</strong> <strong>Manual</strong> Page 94<br />
6<br />
4 front view<br />
4 rear view<br />
1* Central plate for 2 buttons,<br />
order no. 19 9201 00<br />
2* Frame, internal dimensions: 55 x 55 mm<br />
3* Back box screws<br />
4 RAB<br />
5* Back box, 1-gang<br />
6 DIP switches<br />
7 Connection field<br />
* Not included with delivery.<br />
Registering the room devices in the RAB<br />
So that the room devices that are connected to the inputs of the This is how you have to proceed<br />
RAB (max. 4 room devices per input) are monitored by the RAB<br />
for faults during nurse call operation, they must first be registered<br />
by the RAB.<br />
Press the green button and keep it pressed.<br />
Within 1 second, also press the red button and<br />
keep it pressed for 10 seconds.<br />
The RAB registers all operational room devices<br />
Pre-condition: Terminating resistors are active<br />
with terminating resistor.<br />
The 120 kOhm terminating resistor must be active on all room<br />
devices connected at an input of the RAB. If several devices are<br />
Three short confirmation tones sound.<br />
connected in series, the terminating resistor must be active on<br />
each of these devices. Refer to the installation instructions for the<br />
device for how to activate the terminating resistor.<br />
As an alternative to the described method, you can<br />
disconnect the RAB from the power supply and<br />
then reconnect it. The RAB then registers all opera‐<br />
tional room devices with a terminating resistor<br />
automatically.<br />
1*<br />
3*<br />
2*<br />
2*<br />
1*<br />
7<br />
4<br />
3*<br />
5*
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