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d
Building Grounding
Check that there is less than 1 V ac between the metal housings of plugs, connectors,
receptacles, and so on, and any grounded point in the building. This can be any
grounded metal structure, such as the stanchions of a raised floor (if they are
electrically connected to building ground), a metal water pipe, building steel, and so on.
Notes:
1) When probing a painted metal part, ensure that the meter probe tip penetrates the paint.
2) Also check plugs of incoming cables.
5
Input Power Voltage
Check the:
dc Input Voltage
For dc input, the customer's voltage must be within -40.0 V to -58.0 V. There is no adjustment for
the optional dc input.
ac Input Voltage
For ac input, the customer's voltage must be within 100 V to 120 V or 200 V to 240 V.
6
Power Control Switch
a. Ask the customer to connect the power cords to the customer's mains supply.
b. Turn the power ON/STANDBY switch to ON on all the power supplies installed, then using the
following table, check the status of each element.
7
Power OFF
a. Switch all the power supply switches to POWER OFF (O) and check that:
1) The 8265 is powered OFF.
Note
In the 8265, the primary power (ac) or filter sections (dc) stay energized.
For total disconnection, remove all the power plugs from supply outlets or shutdown the
installation.
2) All the fans are stopped.
3) All LEDs on all modules installed are OFF.
Element
Status
Controller
Module
The green LEDs power supply
(1 to 4 according to the number of power supply installed) are ON.
The green LEDs Fan are ON.
The yellow LED Temp is OFF.
xx
8265 PD and SG
Summary of Contents for 8265 Nways ATM Switch
Page 1: ...8265 Nways ATM Switch IBM Problem Determination and Service Guide SY33 2128 00...
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Page 3: ...8265 Nways ATM Switch IBM Problem Determination and Service Guide SY33 2128 00...
Page 8: ...vi 8265 PD and SG...
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Page 11: ...Tables 3 1 Wraps available on WAN Modules 3 9 Copyright IBM Corp 1998 ix...
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Page 33: ...Chapter 2 MAPS Copyright IBM Corp 1998 2 1...
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Page 159: ...Appendix A 8265 Part Numbers 8265 Parts Copyright IBM Corp 1998 A 1...
Page 160: ...1 Rear View A 2 8265 PD and SG...
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