3.2.7  

CUP and CUPR 
 
The backplane comes in two versions:
 •   CUP (Connection Unit Point) S30777-Q751-X (Figure 3-11) - for use in HiPath 3350 (wall housing)
 •   CUPR (Connection Unit Point Rack) S30777-Q751-Z (Figure 3-12) - for use in HiPath 3300 (19-inch housing)

CUP connector designations and slot assignments (S30777-Q751-X)  
 Figure 3-11   CUP Backplane (S30777-Q751-X)
 

CUPR connector designations and slot assignments (S30777-Q751-Z)  
 Figure 3-12   CUPR Backplane (S30777-Q751-Z)
 

Replacing the Backplane  
Replacing the backplane may be necessary due to contact problems. These are evidenced by the following symptoms:
 •   Error messages about various peripheral modules occur.
 •   Erratic error messages about the CBCC/CBRC and UPSCD modules occur.
 •   The system displays the error message B16-12 RESTART: Power down and performs a restart.
Please note, however, that the backplane should only be replaced if the errors still occur even after the following points have been checked and the mentioned problems eliminated:
 •   Have the necessary grounding regulations been followed?
 •   Do the cables have contact problems or visible damage?
 •   Do the system components have any visible damage?
The following part numbers must be used to order the necessary replacement parts for HiPath 3500:
L37911-A10-A17:  
HiPath 3300 box, incl. UPSCDR  
S30777-Q751-Z:  
HiPath 3300 backplane CUCR  
Replacing the backplane is described in Section 4.2.5 "Replacing the Backplane".