Chapter 4 of 716% of exam
Systems Configuration and Installation
Equipment rooms, bonding, satellite, CATV, video, access control, telephone, batteries, audio, fiber, building automation and VoIP. CSLB weights this section at 16%. For worked examples, named traps and a full practice exam at CSLB's weights, see the PrepPass C-7 Low Voltage Systems study guide.
Rooms and bonding
Build the room in order and bond every metallic part to the busbar.
Rack clearance
36 inches front and back.
UFC 3-580-01 (2024), para. 2-3.1.5.3Bonding test
Less than 100 milliohms between any two points.
UFGS 27 10 00 (2025), para. 3.11.1.2Antenna masts
Grounded without a splice in the grounding conductor.
Cal. Code Regs. tit. 8 §2587.5Systems
Each system has its own configuration rules.
Cameras
PoE reach 100 meters; 7–15 fps adequate for most security uses.
UFC 4-021-02 (2025)Audio
25 or 70.7 V lines; size amplifiers at total taps × 1.4.
UFGS 27 51 16VoIP
150 ms one-way latency bound; separate voice and data networks.
NIST SP 800-58