Verilink AS2000: The Basics (880-502981-001) Product Manual Manual do Utilizador descarregar pdf (Página 83)

Monitoring and Troubleshooting

Verilink Access System 2000: The Basics 5-17

The input DC voltages can be measured at J14 (power supply A) or

J15 (power supply). If the power supply input voltage is correct,

measure the output voltages at the front panel test jacks. The 5V

point should output 5.5 Vdc and the 12 V point should output 12

Vdc.

If the shelf backplane has DC power, replace the associated DC

power supply. Check the power source and ground wiring from

TB1.

AC Power

If an AC power supply fails, check the power cord connection to the

AC outlet. If this connection is good, verify that the AC outlet is

providing power. If the power source is good, replace the power

supply.

NOTE:

When operating in an AC power environment, give strong

consideration to connecting one power supply to a UPS, and

the other power supply directly to local commercial power.

Figure 5-3 illustrates a basic AS2000 fault isolation tree.

1 2 ... 78 79 80 81 82 83 84 85 86 87 88 ... 178 179

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Verilink AS2000: The Basics (880-502981-001) Product Manual Manual do Utilizador Página 83