NEC NEAX 2400 IPX, Руководство пользователя

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NDA-24299 CHAPTER 7
Page 171
Revision 1.0
TROUBLESHOOTING
23-S FCH Failure Notification (Detection)
Figure 7-13 How to Check 10 BASE-T Cables
WARNING:
When a HUB card is placed in make-busy, all BASE-T interfaces connected to the
HUB card become inoperative.
ATTENTION
C ontents
Static Sensitive
H andling
Precautions R equired
2
M B
O P E
10 BAS E-T
: 1 0 B A S E -T ca ble
U nplug and plug the m odular connector
M B
M B
H U B -H U B C ab le C o nn e ctio n T es t
1 ) T u rn O N th e M N T sw itch o f t h e F C H car ds whic h a r e co nnect e d
to th e b o th H U B card s.
2 ) M ak e su re th a t syste m m e ssa ge (23 -W ) "F C H A lte rn ate R o uting
(sta rt)" is d isp la ye d fo r e a ch F C H .
3 ) T u rn O N th e M B ke y o n the bo th H U B ca rd s.
4 ) U n p lug an d p lu g th e m o d u la r co nn e cto r a fe w tim es a t e a ch co n n e -
cto r sin ce th e co n ne ctio n m a y b e a p o or co nta ct.
5 ) If t he above proce d u r e d o e s not r e s ult i n n or m a l operatio n , perf or m
th e co n d u ctive te st o f t h e 1 0 B A S E- T ca b l e.
H U B -L A N I C a b le C o nn e ctio n T est
1 ) T u rn O N the M N T 3 sw itch o f th e F C H ca rd s w h ic h a re co nn e cted
to th e b oth H U B ca rd s.
2 ) M a ke su re th at syste m m e ssa g e (2 3 -W ) "F C H A ltern a te R o u tin g (start)"
is disp lay ed fo r e a ch F C H .
3 ) T u rn O N the M B ke y on th e H U B ca rd .
4 ) U n plu g a n d p lu g th e m o d ula r co n n e cto r a fe w tim e s a t e a ch co n ne ctor
since th e co n n ection m ay b e a p o o r co n ta ct.
5 ) If th e a b o v e p r o c edur e d oes n ot r e s ult i n nor m a l o p e r ati o n , perfor m t he
co nd u ctive te st of th e 1 0 BASE- T c a b l e.
H U B - F C H C a b le C o n n ec tion T e st
1) T u rn O N th e M N T 3 sw itch on th e F C H c ard . (m a ke -b u sy-re qu e st)
2) M a ke su re tha t system m e ssa g e (2 3 -W ) "F C H
A lte rna te R ou tin g (sta rt)" is d isp la ye d.
3) T u rn O N th e M B ke y o n th e F C H ca rd .(m ak e-b u sy)
4) T u rn O N th e M B ke y o n th e H U B ca rd .(m a ke -b u sy)
5) U np lu g a nd plu g the m o du la r co n n ecto r a few
tim e s a t ea ch con n e cto r sin ce th e co n ne ctio n m a y
b e a p o o r co n ta ct.
6) If th e a b o ve p ro ce du re d o e s n o t re sult in n orm al op e ra tio n,
pe rform th e co n d u ctive test o f the 10 B A S E -T ca b le .
m odular
connector
m odular
connector
H U B (P A -M 96 )
H U B (P A -M 96)
FC H (P A -FC H A )
D TI(P A -24D TR )
M NT 3
M N T
to L A N I
(P Z -P C 19 )
A
B
B
C
C
A
M B
M B