Siemens Building Technologies
Fire Safety
P/N 315-049692C-1
2
Figure 2
SLIM Wiring Diagram - Class B Installation
Class A Single Loop
(See Figure 3) In Class A wiring the SLIMs are wired in series with the loop wiring.
This results in a single continuous loop. If any group in the loop has a short, that
group is lost and a Class A circuit failure results.
•
The FS-250C displays the message “DLC Open” and “no response” for
devices in the groups on the loop that follow the short.
Figure 3
SLIM Wiring Diagram - Class A Installation (Single Loop)
1.
All wiring must comply with
national and local codes.
2. In order to provide adequate
protection, it is recom-
mended that you do not
install more than 20 devices
on a single SLIM.
3. Minimum wire gauge is
18 AWG.
4. The total wire resistance
(both wires) between SLIMs
cannot exceed 20 ohms.
5. Do not install more than 15
SLIMs per FDLC loop.
6. All circuits are supervised.
7.
Refer to FDLC Installation
Instructions, P/N 315-
447360FA or the FS-250C
Manual, P/N 315-049589C
for the list of compatible
devices, as applicable.
8. All terminals are power
limited.
1.
All wiring must comply with
national and local codes.
2. In order to provide adequate
protection, it is recom-
mended that you do not
install more than 20 devices
on a single SLIM.
3. Minimum wire gauge is
18 AWG.
4. The total wire resistance
(both wires) between SLIMs
cannot exceed 20 ohms.
5. Do not install more than 15
SLIMs per FDLC loop.
6. All circuits are supervised.
7.
Refer to FDLC Installation
Instructions, P/N 315-
447360FA or the FS-250C
Manual, P/N 315-049589C
for the list of compatible
devices, as applicable.
8. All terminals are power
limited.
ANALOG LOOP
LINE 1
LINE 2
IN
IN OUT OUT
IN
IN OUT OUT
IN
IN OUT OUT
TO ANALOG
LOOP RETURN
INSIDE ENCLOSURE
TO ANALOG
LOOP FEED
LINE 1
LINE 2
LINE 2
LINE 1
IN
IN OUT OUT
IN
IN OUT OUT
IN
IN OUT OUT
IN
IN
OUT
OUT
IN
IN
OUT
OUT
IN
IN
OUT
OUT
