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NDA-24299
CHAPTER 6
Page 147
Revision 1.0
POST INSTALLATION TEST
Repair Procedure When LED Indicates Abnormality
2.1 Front Cable
Make sure that front cable 10AL (10) FLT CA is securely inserted into the connectors.
•
FCH (PA-FCHA) switch setting
Make sure that the following keys are set properly:
•
Dch TS designation (0ch - 23ch: SW11, SW12, SW13)
•
Data Link Signal Logic (positive/negative: SW14-1)
•
Fusion Data Link Speed (48/56/64 kbps: SW14-2, 3)
•
LAPD Signal Link (user/network: SW14-4)
•
24DTI (PA-24DTR) switch setting
Make sure that the keys are properly set on the card. See the NEAX2400 IPX Circuit Card Manual.
If the Fusion link is not established with this repair procedure, perform the Fusion Link Test.
2.2 How to Perform the Fusion Link Test
2.2.1
Fusion Link Test Mode Setting
To set the FCH card in Fusion Link Test Mode, set the Mode Switch to 9. Initialize the FCH card using
the MB key. When the Mode is 9, the Fusion Link Controller on the FCH card sends a test data pattern.
When the same pattern is received again, the PM activates the LYR LED, flashing the LED at 60-INT
to indicate that the test result is OK.
illustrates the Fusion Link Test Mode.
Figure 6-3 Fusion Link Test Mode
Note:
Be sure to initialize the FCH (PA-FCHA) card after changing the setting of the Mode Switch.
Note:
Loopback points are set by a DTI card.
9
M ode
LYR
9: F usion L ink T est M ode
8: S tand ard Se tting
FC H card
to DTI card
Test is OK
L YR LE D flas hes .
FCH
front cable
Flow of T est
PA -
FC H A
S en d Te st
D ata P atte rn
Receive Test
Data Pattern
FR O N T VIEW
F usion Link C ontroller sends
test data pattern.
D TI In te rfa ce
D/I
Fus io n Lin k
C on tro ller
Loopback
T o perform a Fusion link test, set the M ode sw itch to 9.
Содержание NEAX 2400 IPX
Страница 1: ...OCTOBER 2000 NEC America Inc NDA 24299 ISSUE 1 STOCK 200776 Fusion Network System Manual ...
Страница 15: ...LIST OF TABLES NDA 24299 Page x Revision 1 0 This page is for your notes ...
Страница 73: ...CHAPTER 4 NDA 24299 Page 58 Revision 1 0 This page is for your notes ...
Страница 159: ...CHAPTER 5 NDA 24299 Page 144 Revision 1 0 DATA PROGRAMMING Office Data Sheets This page is for your notes ...