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Important:
As noted in “Overview for I/O expansion units” on page 1, there is only one SPCN loop
per system to which all expansion units are connected.
Procedure
1.
Choose from the following options:
v
To add expansion units when there is not already an SPCN loop, go to step 2.
v
To add expansion units to the beginning of an existing SPCN loop, go to step 3.
v
To add expansion units to the middle of an existing SPCN loop, go to step 4.
v
To add expansion units to the end of an existing SPCN loop, go to step 5 on page 19.
2.
To add expansion units when there is not already an SPCN loop, do the following:
a.
Connect an SPCN cable to connector SPCN0 on your system unit.
b.
Connect the other end of the SPCN cable to connector SPCN 0 on one of the expansion units to be
added.
c.
Connect another cable to connector SPCN 1 on the expansion unit added in step 2b.
d.
If there is another expansion unit to add, do the following:
1)
Connect the other end of the cable from connector SPCN 1 on the expansion unit just added to
connector SPCN 0 on the next expansion unit.
2)
Connect another cable to connector SPCN 1 on the expansion unit added in step 2d1.
e.
Repeat step 2d for each additional expansion unit to be added.
f.
Connect the other end of the cable from connector SPCN 1 on the last expansion unit added to
connector SPCN1 on your system unit.
g.
Return to the procedure that sent you here.
3.
To add expansion units to the beginning of an existing SPCN loop, do the following:
a.
Remove the SPCN cable end from connector SPCN 0 on the first expansion unit (the one
connected to connector SPCN0 on the system unit). Reconnect this cable end to connector SPCN 0
on one of the expansion units to be added.
b.
Connect another SPCN cable to connector SPCN 1 on the expansion unit added in step 3a.
c.
If there is another expansion unit to add, do the following:
1)
Find the other end of the cable attached to connector SPCN 1 on the expansion unit just
added. Connect this end to connector SPCN 0 on the next expansion unit to be added.
2)
Connect another cable to connector SPCN 1 on the expansion unit added in step 3c1.
d.
Repeat step 3c for each additional expansion unit.
e.
Find the other end of the cable attached to connector SPCN 1 on the last expansion unit added.
Connect this end to connector SPCN 0 on the expansion unit that was disconnected in step 3a.
f.
Return to the procedure that sent you here.
4.
To add expansion units to the middle of an existing SPCN loop, do the following:
a.
Remove the SPCN cable end from connector SPCN 0 on the expansion unit that will follow the
expansion units that are being added. Reconnect this cable to connector SPCN 0 on one of the
expansion units to be added.
b.
Connect another SPCN cable to connector SPCN 1 on the expansion unit added in step 4a.
c.
If there is another expansion unit to add, do the following:
1)
Find the other end of the cable attached to connector SPCN 1 on the expansion unit just
added. Connect this end to connector SPCN 0 on the next expansion unit to be added.
2)
Connect another cable to connector SPCN 1 on the expansion unit added in step 4c1.
d.
Repeat step 4c for each additional expansion unit.
e.
Find the other end of the cable attached to connector SPCN 1 on the last expansion unit added.
Connect this end to connector SPCN 0 on the expansion unit that was disconnected in step 4a.
f.
Return to the procedure that sent you here.
18
Enclosures and expansion units
Summary of Contents for Escala Power7 Series
Page 1: ...Enclosures and expansion units ESCALA Power7 REFERENCE 86 A1 23FF 07 ...
Page 2: ......
Page 88: ...76 Enclosures and expansion units ...
Page 146: ...134 Enclosures and expansion units ...
Page 147: ......
Page 148: ...Printed in USA ...