Cabling the 3746-900 to the 3745-X1A
Direct Memory Access (DMA) Bus Cabling
Step
1. ____ In the 3745, locate the four DMA flat cables
.1/
(see Figure 4-18
on page 4-19). Cables
.1/
should be labeled: To 3745 W02, W03,
W04, and W05.
Step
2. ____ Fold the DMA cables according to fold marks.
Step
3. ____ Install short retainers
.5/
(PN 1953188) and four interposers
.6/
on
the DMA bus cables. Make sure the interposers are seated completely
flush with the connectors on the cables as it takes considerable pressure
to seat them properly (see Figure 4-19 on page 4-20).
Step
4. ____ Remove the clamps
.3/
used to maintain the IOC cables.
Step
5. ____ Plug the DMA cables
.1/
on the top of the DICO card into their
respective positions from W02 to W05.
Step
6. ____ Clamp cables in raceways using retainers
.3/
(PN 0813519) see
Figure 4-19 on page 4-20.
Step
7. ____ Secure the cable extenders using an intermix bracket
.4/
(PN
1953110) see Figure 4-19 on page 4-20.
Step
8. ____ Re-install the cards removed in step 2 on page 4-15, in positions U
and V, and any crossovers (if needed, refer to the
Maintenance Informa-
tion Procedures, SY33-2054, for crossover setting). Hold the excess
length of the cables in the 3746-900 frame.
Go to “Plugging the Active and Passive Bypass Cards and Connecting the +5 V Cables” on
page 4-41.
Chapter 4. Connecting the 3746-900 to a 3745-X1A
4-21
Summary of Contents for 3746-900
Page 1: ...3746 Nways Multiprotocol Controller Model 900 IBM Installation Guide SY33 2114 03...
Page 2: ......
Page 3: ...3746 Nways Multiprotocol Controller Model 900 IBM Installation Guide SY33 2114 03...
Page 14: ...xii 3746 900 Installation Guide...
Page 17: ...Notices xv...
Page 20: ...7 Power ON indicator 8 Emergency power OFF xviii 3746 900 Installation Guide...
Page 24: ...xxii 3746 900 Installation Guide...
Page 26: ...xxiv 3746 900 Installation Guide...
Page 40: ...3746 900 preparing for installation 1 14 3746 900 Installation Guide...
Page 102: ...3746 900 Test Procedure 3 14 3746 900 Installation Guide...
Page 146: ...Cabling the 3746 900 to the 3745 X1A 4 44 3746 900 Installation Guide...
Page 168: ...3745 Test Procedures 7 6 3746 900 Installation Guide...
Page 198: ...3746 900 Ground Bracket Installation 9 6 3746 900 Installation Guide...
Page 204: ...3746 900 Attached to a 3745 17A Ground Bracket Installation 10 6 3746 900 Installation Guide...
Page 210: ...Machine Ready for Customer 11 6 3746 900 Installation Guide...
Page 218: ...Removal the 3746 900 Attached to a 3745 17A 13 4 3746 900 Installation Guide...
Page 220: ...A 2 3746 900 Installation Guide...
Page 250: ...E 14 3746 900 Installation Guide...
Page 268: ...X 18 3746 900 Installation Guide...
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Page 276: ...IBM Part Number 29H4858 Printed in Denmark by IBM Danmark A S 29H4858 SY33 2114 3...