Connection; General Considerations; Class A Connections - Bosch FPE-1000-NE Installation Manual

Networking Cards
5

Connection

5.1

General considerations

NOTICE!
All wiring except the battery terminal and primary AC power is power-limited. Phone lines are
also generally considered to be nonpower-limited.
Power-limited and nonpower-limited circuit wiring must remain separated in the cabinet by at
least 0.25 in. (64 mm) and must enter and exit from the cabinet through different knockouts
or conduits. Phone lines are generally considered to be nonpower-limited, so the cables for
networking cards should not be run through the same knockout as the phone lines.
Avoid shielded or twisted-pair wire except for special applications where a reduced length of
wiring (roughly 50%) is acceptable for tolerating a harsh electrical environment. Consider
fiber optics for these applications.
A network group can be connected as Class A Style 7 or Class B Style 4. Class A configuration
is recommended because this allows the panels in a network to communicate with each
other, ensuring circuit operation in the event of a single break in the wiring.
The following table lists the trouble conditions that result when a fault exists on the network
(SLC according to UL 864).
Type of Fault
Single Open
Single Ground
Short
Short and open
Short and ground
Open and ground
Communication loss
Trouble = The control panel will indicate a trouble condition for this type of fault.
Alarm = The control panel must be able to process an alarm input signal in the presence of
this type of fault.
Table 5.1 Network Trouble Conditions
5.2

Class A connections

In a Class A loop, the FPE-1000-NW Wired Networking Card must be wired accoring to the
following table:
Bosch Security System, Inc.
Class B Style 4
Trouble
Alarm, Trouble (ground)
Trouble
Trouble
Trouble
Trouble
Trouble
Installation Manual
Connection | en
Class A Style 7
Alarm, Trouble
Alarm, Trouble (ground)
Alarm, Trouble
Trouble
Alarm, Trouble
Alarm, Trouble
Trouble
F.01U.214.374 | 01 | 2012.08
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