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Optional Network Connections (Continued)
RS-485 Network Wiring
Network wiring conforms to
•Use Belden 9925 or Carol C0600 shielded cable or equivalent. Maximum wire run distance is 4000 feet.
✦NOTE: Be sure to connect the cable’s shield to one of the GND terminals.
Network Wiring with Hub
1.Mount and install the units for the network.
2.Choose one unit to be the Network Hub. Usually this would be a centrally located or “master” unit.
3.Route
4.Connect the
ACCESS CONTROL HOMERUN NETWORK |
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USING ONE UNIT AS A NETWORK MASTER | NETWORK | ||
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| SHIELD | UNIT "2" | |
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| GND | |
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NETWORK |
| NETWORK | |
MASTER |
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| UNIT "3" | ||
UNIT "1" | SHIELD | ||
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GND |
| GND | |
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| NOTE: GROUND |
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| CABLE SHIELDS |
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| ONLY AT ONE END | NETWORK | |
| SHIELD | UNIT "4" | |
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| GND | |
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Network “Daisy-chain” Wiring
1.Mount and install the units for the network.
2.Route
3.Connect the
NETWORK |
| NETWORK | |
MASTER |
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SHIELD | UNIT "2" | ||
UNIT "1" | |||
|
GND | GND |
SHIELD | NETWORK | |
| UNIT "3" | |
ACCESS CONTROL | ||
NETWORK USING | ||
GND | ||
"DAISY CHAIN" | ||
WIRING |
SHIELD | NETWORK |
| UNIT "4" |
NOTE: GROUND | |
CABLE SHIELDS | GND |
ONLY AT ONE END |
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