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I/O and Terminal Block Cards
PAGASYS GEN II (P-SYS-G)
Federal Signal www.fedsig.com
3.10 Fan Wiring Termination Card (P-FWTC-G)
The Fan Wiring Termination card (P-FWTC-G) is a passive card that provides a
termination point for cabinet cooling fans. (See Figure 33.) Two cards are needed in a
standard rack: one for the door mounted cooling fans and one for the roof mounted fans.
NOTE
: The service model for the Fan Wiring Termination card is K-P-FWTC-G.
Figure 33 Fan Wiring Termination Card (P-FWTC-G)
3.10.1 Fan Wiring Termination Card Specifications (P-FWTC-G)
Table 41 Environmental and Physical for the Fan Wiring Termination Card
(P-FWTC-G)
Operating Temperature
-25 to +55
°
C
Humidity
0-98% non-condensing
P-FWTC-G Dimensions (H x W x L)
23 mm x 81.3 mm x 38.1 mm
Weight
0.04 kg/0.08 lb
3.11 IS Barrier Board (P-IS-BARRIER-G)
The IS Barrier Board (P-IS-BARRIER-G) provides an Intrinsically Safe barrier between
Access Panels that are mounted in a hazardous area and the PAGASYS GEN II Cabinet.
(See Figure 34.) The IS Barrier Board provides two sets (A and B) of diode safety barrier
circuits, each consisting of seven independent diode safety barriers.
A diode safety barrier is designed to limit the amount of energy that can appear at its
output terminals. Each diode safety barrier consists of the following:
• An output resistor to limit the current
• Redundant or parallel Zener diode chains to limit the voltage
• Fuses to protect the barrier components
Each set of diode safety barriers is connected to the PAGASYS GEN II System
Controller by an RJ45 socket (connectors J1 and J2) and is connected to the PAGASYS
GEN II IS access panel or microphone station by an eight-way terminal block (connectors
TB2 and TB3). Connector TB1 allows the Barrier Board to be grounded to an IS
grounding termination bar.