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64
en | Cable and Wire Standards
In a daisy chain configuration, where multiple domes are connected in series, the 100 Ω
resistor must be removed from all but the last dome. You can daisy chain a maximum of four
(4) AutoDomes.
Figure 5.3 Connections for a Daisy Chain Configuration
1
2
3
4
5
6
7
8
5.4.2
Controlling the AutoDome via the RS232 Protocol
(3-wire, full-duplex, single-ended, 50 ft. cable limit)
RS232 is a common, single-ended communication protocol used for control. Data
transmission via 3-wires (TDX, RXD, common) is from one transmitter to one receiver at
relatively slow baud rates (up to 57.6 Kbaud) and short distances up to 50 ft.
NOTICE!
After making the wire connections for RS232 operation, reposition the slide switch located on
the CPU Module to the camera head inward and away from the LEDs.
Wire Type
Distance
Maximum Baud Rate
Voltage
Termination
Slide Switch
F.01U.217.818 | 1.0 | 2011.04
100 Ω
C- (Biphase)
C+ (Biphase)
Earth Ground
RxD
TxD
Signal Ground
Last Dome Data In/Out
P105/P106 Connector
3-wire (TXD, RXD, common)
15 m (50 ft)
57.6 Kb
± 15 V
100 Ω
Away from LEDs (factory default)
Installation Manual
9
Dome 3
10
Dome 2
11
Dome 1
12
Head End Biphase
13
C- (Biphase)
14
C + (Biphase)
15
Shield
AutoDome 100 Series Fixed Camera
Bosch Security Systems, Inc.
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