Installation Instruction VARIODYN
®
D1 System
12 FB 798663.GB0 / 05.19
Cable Types and Specifications
The cable types listed are required for installation of the VARIODYN
®
D1 System and must be used accordingly.
DAL-Bus (Digital Audio Link)
Devices, such as digital call stations (DCS) digital fire brigade call stations (DCSF) and universal interface
modules (UIM) are connected to the digital output module (DOM) via the DAL bus. The devices are connected via
at least one shielded CAT5 cable. With a maximum distance of 300 m.
For distances greater than this, fibre optic cables are used. Length max. 2,000 m. Due to the 24 V DC supply
voltage over the DAL bus, a special fibre optic converter is required for this (e.g. Part No. 583316.21 or
583317.21). In addition, fibre optic cables of type multimode 50/125 µm GI, 62,5/125 µm GI with duplex SC
connection are required.
If E30 cabling is required, the cable type JE-H (St) H 4 x 2 x 0.8 mm BETAflam
®
must always be used.
Max. length 150 m.
PIN
Fig. 3: DAL bus RJ45 connector (blue)
The RX and TX connections in these components are prepared for direct connection of the blue
DAL bus cable.
•
The signal cable for the DAL bus and Ethernet network connection must be positioned at a
sufficient distance from disruptive electromagnetic fields, power cables, and other sources of
electrical interference in order to prevent a negative effect (minimum distance: 0.5 m to
loudspeaker lines, other signal cables or power cables).
• To prevent malfunctions, only devices of the VARIODYN
®
D1 System specified for use on DAL
bus cables (e.g. call stations and UIM) can be connected.
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