IBM 4247 - Page 58

K2 (x=2) is the module designation for Model 001. K5 (x=5) is the module designation for Model 002. The vvv is a
3 digit number that indicates the module code version number.
Return to step 14 on page 48.
Feature
Name
Module
U54 Label
Module
U2 Label
Coax IPDS
Coax SCS
Twinax IPDS
Twinax SCS
KxCXCvvv
U54 CRC
KxCXCvvv
U54 CRC
KxTXCvvv
U54 CRC
KxTXCvvv
U54 CRC
KxCXGvvv
U02 CRC
KxCXGvvv
U02 CRC
KxTXGvvv
U02 CRC
KxTXGvvv
U02 CRC
E90X001
Figure 11. Models 001 and 002, Microcode Module Locations on Logic Board
Chapter 1. Diagnosing Problems 58