Bull Escala Power7 Series, Manual

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Table 2. 12X DDR cables
Cable feature Length Part number Additional information
1828 1.5 m (4.9 ft.) 45D2235 12X to 4X channel
conversion adapter used for
clustering
1841 3.0 m (9.8 ft.) 45D2236 12X to 4X channel
conversion cable used for
clustering
1842 10.0 m (32.8 ft.) 45D2237 12X to 4X channel
conversion cable used for
clustering
1861 0.6 m (1.9 ft.) 45D4785
1862 1.5 m (4.9 ft.) 45D4786
1863 2.5 m (8.2 ft.) 45D4787
1864 8.0 m (26.2 ft.) 45D4788
1865 3.0 m (9.8 ft.) 45D5271
SPCN cables
Table 3. SPCN cables
Cable feature Length Part number
6001 2.0 m (6.6 ft.) 22R5217
6006 3.0 m (9.8 ft.) 22R5239
6007 15.0 m (49.2 ft.) 22R5221
6008 6.0 m (19.6 ft.) 22R5219
6029 30.0 m (98.4 ft.) 22R5222
Expansion unit configuration rules
Learn about important configuration rules that must be followed when connecting expansion units to
system units.
When you set up an expansion unit, observe the configuration rules in the following list:
v
Expansion units must be connected to system units with 12X cables in a loop topology. Doing so
produces redundancy in the 12X connections so that a single cable failure does not result in loss of
communication between the system unit and one or more expansion units.
v
Expansion units must be connected to system units with SPCN cables in a loop topology. Doing so
produces redundancy in the SPCN connections so that a single cable failure does not result in loss of
communication between the system unit and one or more expansion units.
v
Expansion units with 12X SDR capability cannot be in the same 12X loop as expansion units with 12X
DDR capability. The following expansion units have 12X SDR capability:
– 14G/30
– 57/98
The following expansion units have 12X DDR capability:
– 58/02
– 58/03
– 58/73
– 58/77
4
Enclosures and expansion units