12
Switch Installation
Connecting to Power
General Guidelines
Before installation, observe these general guidelines:
Caution: Proper ESD protection is required whenever you handle Cisco equipment. Installation and maintenance
personnel should be properly grounded by using ground straps to eliminate the risk of ESD damage to the switch.
Do not touch connectors or pins on component boards. Do not touch circuit components inside the switch. When
not in use, store the equipment in appropriate static-safe packaging.
If you are responsible for the application of safety-related programmable electronic systems (PES), you need to be
aware of the safety requirements in the application of the system and be trained in using the system.
Caution: The device is designed to mount on a DIN rail that conforms to Standard EN50022.
When determining where to place the switch, observe these guidelines:
Before installing the switch, first verify that the switch is operational by powering it on and observing LEDs.
For 10/100 ports, the cable length from a switch to an attached device cannot exceed 328 feet (100 meters).
For 100BASE-FX fiber-optic ports, the cable length from a switch to an attached device cannot exceed 6562 ft (2
km).
Clearance to front and rear panels meets these conditions:
— Front-panel LEDs can be easily read.
— Access to ports is sufficient for unrestricted cabling.
— Front-panel direct current (DC) power connectors and the alarm connector are within reach of the connection
to the DC power source.
Airflow around the switch must be unrestricted. To prevent the switch from overheating, you must have the following
minimum clearances:
— Top and bottom: 2.0 in. (50.8 mm)
— Sides: 1.0 in. (25.4 mm)
— Front: 2.0 in. (50.8 mm)
Caution: When the switch is installed in an industrial enclosure, the temperature within the enclosure is greater than
normal room temperature outside the enclosure.
Ensure temperatures inside the enclosure conform to device specifications detailed in Table 1 on page 45.
Cabling is away from sources of electrical noise, such as radios, power lines, and fluorescent lighting fixtures.
Connecting to Power
Tools and Equipment
Obtain these necessary tools and equipment:
Ratcheting torque flathead screwdriver that exerts up to 18 in-lb (2.03 N-m) of pressure.
For the protective ground connector, obtain a single or pair of stu size 6 ring terminals (such as Hollingsworth part
number R3456B or equivalent).
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