Networking CardsConnection en 13
5 | Connection |
5.1 | General considerations |
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| NOTICE! |
| All wiring except the battery terminal and primary AC power is |
also generally considered to be
Avoid shielded or
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).
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| Type of Fault | Class B Style 4 | Class A Style 7 |
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| Single Open | Trouble | Alarm, Trouble |
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| Single Ground | Alarm, Trouble (ground) | Alarm, Trouble (ground) |
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| Short | Trouble | Alarm, Trouble |
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| Short and open | Trouble | Trouble |
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| Short and ground | Trouble | Alarm, Trouble |
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| Open and ground | Trouble | Alarm, Trouble |
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| Communication loss | Trouble | Trouble |
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| Trouble = The control panel will indicate a trouble condition for this type of fault. | ||
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| Alarm = The control panel must be able to process an alarm input signal in the presence of | ||
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| this type of fault. |
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| Table 5.1 Network Trouble Conditions |
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5.2 | Class A connections |
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| In a Class A loop, the | ||
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| following table: |
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Bosch Security System, Inc. | Installation Manual | F.01U.214.374 01 2012.08 |