Removal the 3746-900 attached to a 3745-X1A
Step
4. ____ Unplug the 3746-900 main power cable, or ask the customer to dis-
connect the 3746-900 power cable from its ac power receptacle (or dc
power if any).
Note: If you have to remove a controller expansion, you have to discon-
nect its power cable following the same procedures.
Step
5. ____ Coil the disconnected power cable inside the 3746-900.
Disconnecting the Interface Cables
Step
1. ____ If the machines are being relocated, label and remove all data set
cables from the TRA and ESCA adapters.
Note: It is advisable to disconnect the cables, starting at the top of the
gate (expansion board 07M-A1), and working down.
Step
2. ____ Remove the cable (PN 76F9440 or 76F9441) from the 8228 LAN
adapter (plugs 1 to 8) to the 3746-900 01N-A1 F1.
Disconnecting Inter-Machine Cabling
Step
1. ____ Proceed in reverse order, as for the installation (see Chapter 4,
“Connecting the 3746-900 to a 3745-X1A” on page 4-1), and disconnect
the following inter-machine cables:
a. ____ Power control cable (PN 03F7538) from the 3745, and then coil
it up.
b. ____ UEPO cable (PN 76F9341) from the 3745.
c. ____ +5V cables, if they exist (two for PN 76F9338 and two for PN
76F9339), from the 3745 or 3746 frames.
d. ____ IOC and DMA bus flat cables. Roll and secure them in the
3746-900 frame.
Step
2. In the 3745 or 3746 boards:
a. ____ Where the IOC and DMA cables have been removed, remove
the dico cards (PN 17G6080) then plug the LA bus terminator cards
into the same locations.
b. ____ Using the function 'Locate Bypass Card Position', locate the
active and passive bypass cards (PN 09G2862, 09G2864, and
6264604). Remove these cards and put them in the 3746-900 ship-
ping group.
Step
3. ____ Remove the frame-to-frame screws (PN 1621596) and spacers (PN
72F0659) see Figure 4-1 on page 4-3. Put these parts into an envelope.
Write the part number on the envelope, and place it in the shipping group.
Chapter 12. Removal or Relocation of the 3746-900 Attached to a 3745-X1A
12-3
Содержание 3746-900
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Страница 205: ...Machine Ready for Customer Chapter 11 Making the Machine Ready for the Customer Copyright IBM Corp 1996 1997 11 1...
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Страница 276: ...IBM Part Number 29H4858 Printed in Denmark by IBM Danmark A S 29H4858 SY33 2114 3...