Chapter 3 Product Hardware

Power and Grounding

Figure 3-7 ONS 15201 SCU and ONS 15252 MCU grounding

ONS 15252

ONS 15201

PS-1

PS-2

PS-1

PS-2

(LOCATED UNDER FRONT COVER)

LEGEND

 

ONS - Optical network system

 

PS-1

- Power supply one

54640

PS-2

- Power supply two

3.3.1 ONS 15252 MCU Power and Grounding

Two power supply connectors are located on the backplane of the ONS 15252 MCU. The far-right power connector (as viewed from the rear of the ONS 15252 MCU) is called PS-1 (power supply one), and the far-left power connector is called PS 2 (power supply two), as shown in Figure 3-7. The equivalent PS-1 and PS-2 power supply connector terminals are designated 0V and -48V. Grounding for the ONS 15252 MCU chassis is provided by two lug-type grounding connectors (Figure 3-7).

Note To prevent ground loops, use only one grounding connector.

Cisco ONS 15200 Product Description

 

78-13766-01

3-9

 

 

 

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Cisco Systems ONS 15200 manual ONS 15252 MCU Power and Grounding, Ons