Vicon SURVEYOR 2000 7003-00, Installation & Operation Manual

Page: 37 / 64

Recommended Use of the Termination Box for
Daisy Chain Configuration (RS-485 Protocol)
The termination box and RJ-45 cable can also be used to daisy
chain multiple Surveyor2000s. The use of a termination box for
each Surveyor2000 provides the means to patch, or parallel,
the control wiring. Connector J3 provides access to the
Surveyor2000’s control signals. The RJ-45 cable has two male
ends that plug directly into connector J3 and the termination
box. Since the RJ-45 cable is 10 feet (2.5 m), the termination
box must be mounted within the vicinity of the Surveyor2000.
The termination box provides a convenient adapter from the
RJ-45 connector to individual wires. After the cable is passed
through the cable fitting (ceiling-mounted Surveyor2000 only),
connect it to termination box’s jack.
1. Mount the termination box within the vicinity of the
Surveyor2000.
2. Remove the cover of the termination box and verify that the
pre-wired terminal block resembles Figure 26.
3. Disconnect the Common (VSSA) internal wire from the
terminal connection to prevent electrical ground loops in the
wiring. Tuck the terminal behind the remaining wires to
prevent it from touching other terminals.
4. Feed the control cable from the control unit (CPU) or
previous Surveyor2000 into one of the sides of the
termination box and connect each wire to the appropriate
screws.
5. Feed the remaining control cable from the next sequential
Surveyor2000 into the opposite side of the termination box
and connect each wire to the appropriate screws.
6. Verify correct wiring and replace the termination box’s
cover.
7. Proceed to the Configuration section of this manual for
information on setting the 3 termination jumpers.
NOTE : Use only the supplied Vicon RJ-45 cable or shielded
equivalent.
Figure 26
Termination Box for Daisy Chained
Surveyor2000
Figure 27
Block Diagram - Daisy Chained
Surveyor2000s
When wiring several consecutive Surveyor2000s, follow the
previous steps for each camera dome. Refer to Figure 27 as a
general block diagram for the overall cabling of a typical daisy
chain. The maximum distance from the first camera dome to the
last camera dome is 5000 ft (1524 m).
This version of the Surveyor2000 incorporates RS-485 control
signals with tri-state logic levels. This essentially means that any
one Surveyor2000 set of control signals have a high impedance
state they can be switched to, making that Surveyor2000
transparent to the control bus. This allows wiring of the camera
dome unit control signals in parallel, thus forming the control
bus. Refer to Figure 27.
XX031-01 Rev 803 Surveyor2000 Camera Dome System Wiring
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