IBM iSeries 270 Service Manual page 518

Name Description
PWR61 to PWR64 Power distribution board (PB1) to Device board 3 (DB3)
PWR65 Power distribution board (PB1) to Device board 2 (DB2)
PWR66 to PWR69 Power distribution board (PB1) to Device board 2 (DB2)
PWR70 Power distribution board (PB1) to Device board 1 (DB1)
PWR71 to PWR74 Power distribution board (PB1) to Device board 1 (DB1)
PWR75 Power distribution board (PB1) to AMDs (B01 and B02)
PWR77 AC Input (A01) to Power supply 1 (P01 and P03)
PWR78 AC Input (A02) to Power supply 2 (P00 and P02)
Table 26. Model 840 and Model SB3 (FC 9079) Base I/O Tower - Signal cables - dual line cord
Name
SIG60
SIG61
SIG62
SIG63
SIG64
SIGC65
SIGC66
SIGC67
Models 870 and 890 processor towers: There are two tables covered here:
v Power cables (See page 506)
v AC line cords (See page 510)
Models 870 and 890 Power cables
Use the diagram and table below for information on the power cables for the Models 870 and 890.
Figure 14. Models 870 and 890 - Power cables
506
Hardware (Remove and Replace; Part Locations and Listings)
Description
Tower card (CB1) to Device board 3
(DB3)
Tower card (CB1) to Device board 2
(DB2)
Tower card (CB1) to Device board 1
(DB1)
Control panel (NB1) to Device board
3 (DB3)
Tower card (CB1) to Power
distribution board (PB1) (Includes P/N
97H7476, 97H7477, 97H7607) (part
of Tower card FRU assembly)
JTAG A (internal to TWRCARD)
V/S COMM (internal to TWRCARD)
JTAG C/E (internal to TWRCARD)
Part number
97H7483
97H7544
97H7543
97H7544
97H7543
97H7475
04N2181
04N2181
Part number
97H7481
44L0070
97H7484
24L1752
24L0843
41L5946
44L0007
24L0881