Fire Protection | Data sheet No. 43104 | Version 02-2016 |
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Control unit STG 1.2
Electrical connection
Work on electrical systems or equipment must be carried out only by a qualified electrician or by instructed personnel under the
direction and supervision of a qualified electrician according to electrotechnical regulations.
Please ensure to connect the current ceiling smoke detector model. The older version, type DRM 3.3, has been replaced by version
DRM 3.3-N.
Contact depictions are with the
power off (alarm)
Contact depictions are with the
power off (alarm)
Connection of type DRM 3.3
Connection of type DRM 3.3-N
The power supply to the detector takes place via the system ring bus. The current in the ring bus is limited to 1 A.
The bus line is to be shielded on both sides.
