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4
Legend
Installation Manual
Minimum load requirements
Table 1 lists the load requirements for all Legend dome configurations.
CAUTION
CAUTION
Table 1.
Minimum load requirements of dome configurations
Minimum load
100 lb.
50 lb.
Cable requirements
Table 2 lists the requirements for the cables that connect to the dome.
CAUTION
CAUTION
Table 2.
Cable requirements
Operation
Alarms and relays
Data
Ethernet (for
flashing software
upgrades)
Power
Video
Note:
When using unshielded twisted-pair cable for video and data, the wires can share the same jacket but must remain
separate twisted pairs.
For safety, the mounting surface, hardware, and procedure used for securing the dome must support the
weight of the dome, mount (if used), cables, and any structural or environmental vibration according to
local codes.
Dome configuration
• Rugged, cast aluminum pendant-mount housing (with any mount)
• Heavy duty housing (with any mount)
• Pressurized housing (with any mount)
• Swing-arm mount (with any dome)
All other dome and mount configurations
When flashing software upgrades to the dome over a standard IP network via the dome's Ethernet
connection, ensure that the network is secured from unauthorized access. Like all Ethernet connections, the
dome's Ethernet connection has no security against unauthorized access. You may consider connecting the
Ethernet cable only when you are flashing the dome, unless you have the dome connected to a secure,
isolated network.
22 to 26 gauge (0.64 to 0.4 mm) unshielded, two-conductor, twisted-pair (UTP) cable
For RS-422: 22 gauge (0.64 mm) unshielded, two-conductor, twisted-pair (UTP) cable
For RS-485: 22 gauge (0.64 mm) shielded, two-conductor, twisted-pair (STP) cable
CAT-5 Ethernet cable (without cable boots)
24 VAC cable. To determine the size of cable needed for individual applications, see
Power cable size and length requirements
75 ohm coaxial cable; or
22 gauge (0.64 mm) unshielded, two-conductor, twisted-pair (UTP) cable
Note:
Use only crimp-on BNC connectors. Do not use screw-on connectors.
Cable requirement
on page 6.
Length
feet
meters
10,000
3,000
3,000
900
385
100
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