Tyco 4100U - Manual (Page 121)

7-13
To connect addressable devices/detectors to the SPS IDNet using Class A wiring, read the
following instructions.
1. Ferrite beads are required on the SPS IDNet cables (ref Fig 7.1).
2. Route wire (between 0.75 mm
2 and 4 mm 2 ) from the B+, B- outputs on TB1 of
the SPS to the appropriate inputs on a peripheral IDNet device.
3. Route wire from the first IDNet device to the next one. Repeat for each device.
4. Route wire from the last IDNet device to the A+ and A- inputs on TB1 of the
SPS.
B+ B- SHLD
IDNet
A+
P1
3
2
1 A-
IDNet
DEVICE
IDNet
DEVICE
IDNet
DEVICE
IDNet LOOP
(CLASS A / STYLE G)
Figure 7-6. Class A Wiring
Continued on next page
SPS IDNet Wiring, Continued
Class A Wiring
IDNet
DEVICE
IDNet
DEVICE
IDNet
DEVICE
Ferrite beads
required.