Safety
The voltage label (label J) indicates the input voltage for which the 3745 is wired. This information
must be in accordance with Switch 1 on Power Supply 2 (PS2).
Performing a Power Conversion Inspection:
¹
A power conversion inspection must be performed on any 3745 Communication Controller that
has been converted from 50 Hz to 60 Hz, or from 60 Hz to 50 Hz.
¹
The following is used only for the primary power box. Refer to chapter 4 of the
IBM 3745 Com-
munication Controller Models 130 to 17A, Maintenance Information Procedures, SY33-2070 for
the location.
¹
Check Table 0-1 for the correct part numbers for the specified 50 Hz or 60 Hz use. In case of
discrepancy, contact your support center.
Refer to “Safety Label Locations on the 3745 Models 17A” on page lxxvii for voltage label and
power rating plate location, and to page YZ060, sheet 1, for the PS2 box voltage adjustment by
SW1.
Check that:
¹
The power rating plate and the voltage label of the 3745 are consistent with the frequency and
the voltage measured at the customer's power supply. If not, inform your support center.
3745 Models 21A to 61A Input Power Voltage
The voltage label (label E) indicates the input voltage for which the 3745 is wired.
Performing a Power Conversion Inspection:
¹
A power conversion inspection must be performed on any 3745 Communication Controller that
has been converted from 50 Hz to 60 Hz, from 60 Hz to 50 Hz, from 220 V to 380 V, or from
380 V to 220 V.
¹
The following procedure is only used for frame 01 (base frame) which contains the Primary
Power Box (PPB). Each component must be inspected as described.
Refer to chapter of the
IBM 3745 Communication Controller Models 210 to 61A, Maintenance
Information Procedures, SY33-2054 to locate the frame 01 and the PPB.
¹
Inspection
– Check Table 0-6 on page xxxix for the correct primary power part numbers for the specified
50 Hz or 60 Hz used.
– Check for the correct PS Type 8 :
50 Hz (PN 6495884): This may be verified with the part number (PN 6495880) on the top of
the transformer.
60 Hz (PN 6495898): This may be verified with the part number (PN 6495881) on the top of
the transformer.
In case of discrepancy, contact your support center.
Refer to “Safety Label Locations on the 3745 Models 21A to 61A” on page lxxx for power rating
plate locations and voltage labels, and:
– Page YZ561 for the primary power box voltage adjustment
Table 0-1. Part Numbers
Frequencies
Part Numbers
50 Hz
PN 03F4745
60 Hz
PN 03F4569
xxxiv
3746-900: Service Guide
Содержание FlashSystem 900
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Страница 129: ...3746 900 FRU Exchange 010 continued Go to MAP Ready LED ON on page 1 52 Chapter 1 START 1 35...
Страница 246: ...3746 900 Procedures 10 Click on OK in the following window 11 Return where do you come from 1 152 3746 900 Service Guide...
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Страница 276: ...3746 900 MAPs Figure 2 6 CP2 Circuit 2 18 3746 900 Service Guide...
Страница 325: ...3746 900 MAPs 026 continued Go to Step 014 on page 2 65 Chapter 2 MAPs for FRU Isolation 2 67...
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Страница 491: ...FRU Exchange R e a r S i d e Figure 4 21 3746 900 Connectivity Switch and DCDC Chapter 4 3746 900 FRU Exchange 4 25...
Страница 495: ...FRU Exchange Figure 4 23 3746 900 Rear of DC Power Box Chapter 4 3746 900 FRU Exchange 4 29...
Страница 510: ...FRU Exchange Figure 4 39 3746 900 LIC16 Coupler 4 44 3746 900 Service Guide...
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