IBM 990 - Manual (Page 99)

Chapter 3. I/O system structure 87
Figure 3-9 PCHID Report example
I/O slot 01 has an ISC-3 Daughter (ISC-D) half-high card (FC 0218) in the top, connected to
STI 0 (Jack J.00) from MBA 0 of book 0. Its two enabled ports have PCHID numbers 100 and
101.
I/O slot 04 has a FICON Express LX card (FC 2319), connected to STI 8 (Jack J.08) from
MBA 2 of book 0, and its two ports have PCHID numbers 130 and 131.
The pre-assigned PCHID number of each I/O port relates directly to its physical location (jack
location in a specific slot), except for ESCON sparing; refer to Figure 3-11 on page 96 for an
ESCON sparing example.
Table 3-5 shows the PCHID numbers range for each I/O slot of each I/O cage.
Table 3-5 PCHID numbers and locations
I/O cage slot
PCHID numbers
1st I/O cage 2nd I/O cage 3rd I/O cage
01 (front) 100 - 10F 300 - 30F 500 - 50F
02 (front) 110 - 11F 310 - 31F 510 - 51F
03 (front) 120 - 12F 320 - 32F 520 - 52F
04 (front) 130 - 13F 330 - 33F 530 - 53F
06 (front) 140 - 14F 340 - 34F 540 - 54F
07 (front) 150 - 15F 350 - 35F 550 - 55F
08 (front) 160 - 16F 360 - 36F 560 - 56F
09 (front) 170 - 17F 370 - 37F 570 - 57F
10 (front) 180 - 18F 380 - 38F 580 - 58F
11 (front) 190 - 19F 390 - 39F 590 - 59F
Machine: 2084-A08 NEW1
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Book/Jack/MBA Cage Slot F/C PCHID/Ports Comment
0/J.00/0 A01B D101 0218 100/J00 101/J01
0/J.08/2 A01B D102 0218 110/J00 111/J01
0/J.00/0 A01B 03 1364 120/J00 121/J01
0/J.08/2 A01B 04 2319 130/J00 131/J01
Legend:
A19B Top of A frame
A01B Bottom of A frame
D1xx Half high card in top of slot xx
0218 ISC D <10KM
1364 OSA Express GbE LX
2319 FICON Express LX