7500 Series Instruction Manual
5-5
Troubleshooting
Matrix Modules
7500NB LEDs are identified in
Activity
and
Power
ERR
DS7
(red)
On
Circuit failure or reset
Off
Normal
BSY
DS8
(yellow)
On
Active Controller indication
Off
Inactive
PWR
DS9
(green)
On
Power on
Off
Bad or unseated module
NBX
(Node
Bus
Control)
CR25
3
(green)
On
Not used - can be on or off
Off
CR26
2
(red)
On
Processor Event
Off
Normal
CR27
1
(green)
On
Not used - can be on or off
Off
CR28
0
(green)
On
Node Controller okay (health check)
Off
Bad or unseated module
Table 5-2. 7500NB Modules LEDs
Crosspoint
AES (Synchronous)
Digital (Asynchronous)
LEDs
Input
Output
Input
Output
Label
Indication
Condition
PAR ERR or PAR
(red)
On
Parity error
Off
Normal
ERR or ERROR
(red)
On
Error.
Off
Normal
BSY or BUSY
(yellow)
On
Busy
Off
Standby
PWR
(green)
On
Power on
Off
Bad or unseated module
DONE
(green)
On
Done
Off
Standby
VI STB
(green)
On
VI Strobe present
Off
No VI Strobe
DIAG
(red)
On
Diagnostic in process
Off
Normal
REF1
(green)
On
Reference 1 present
Off
No Reference 1
REF2
(green)
On
Reference 2 present
Off
No Reference 2
OVER TMP
(green)
On
Over temperature
Off
Normal
AUD REF
(green)
On
Audio Reference present
Off
No Audio Reference
Table 5-1. Matrix Controller LEDs - (continued)
Group
LED
Indication
Condition
0531_01_04_r3MC
R5
R6
R21
R22
R23
R24
R25
R26
R27
R28
R29
R33
R34
R35
R36
R37
R38
R39
R40
R12
R13
R14
R15
R16
R17
R18
R19
1
NBX &
X
R11
R32
R20 R3
0
J1
G
R
A
S
S
V
A
L
L
E
Y
M
A
T
R
IX
C
O
N
T
R
O
L
LE
R
6
7
1
-4
7
85
–
J2
1
R
E
S
E
T
C
L
E
A
R
M
E
M
R3
T
E
S
T
ID
L
A
B
E
L
G
O
E
S
H
E
R
E
C1
9903
LTC491
CS
R41
+
5
V
R1
+
3
.3
V
R2
G
N
D
T
P
3
R4
D
S
4
C
R
1
3
D
S
5
C
R
1
4
C
R
1
5
C
R
1
6
DUPL
SPEED
RECV
XMIT
COLL
LINK
C
R
1
7
C
R
1
8
C
R
1
9
C
R
2
0
C
R
2
1
C
R
2
2
7
6
5
4
3
2
C
R
2
3
1
C
R
2
4
0
C
R
2
5
C
R
2
6
C
R
2
7
C
R
2
8
3
2
1
0
X
C
1
X
C
2
V
I R
E
F
A
E
S
C
R
2
D
S
1
C
R
3
D
S
2
C
R
4
ACTIV
E
RECV
XMIT
RECV
XMIT
C
R
5
C
R
6
C
R
7
C
R
8
C
R
9
C
R
1
0
TC
PRES
REF1
PRES
REF2
PRES
REF
ERRO
R
48K1
PRES
48K2
PRES
C
R
1
1
48K
ERRO
R
C
R
1
2
D
S
3
S
Y
S
T
E
M
C
R
1
ERRO
R
BUSY
PWR
OK
N
B
X
T
E
S
T
E
T
H
E
R
N
E
T
C2
U2
M
C
T
O
O
A
P
O
G
8
2
1
R7
R8
R9
R10
CR25
CR26
CR27
CR28
3
2
1
0
CR11
48K
ERROR
CR12
DS3
SYSTEM
CR1
ERROR
BUSY
PWR
OK
NBX
PA
R
ERR
O
R
ERR
O
R
BU
S
Y
PWR
DONE
DIA
G
VI
STB
PA
R
ERR
O
R
ERR
O
R
BU
S
Y
PWR
DONE
DIA
G
REF1
REF2
PA
R
ERR
OR
ERR
O
R
BU
S
Y
PWR
DONE
OV
E
R
TEMP
VI
STB
AU
D
REF
PA
R
ERR
O
R
ERR
O
R
BU
S
Y
PWR
DONE
g
PA
R
ERR
O
R
ERR
O
R
BU
S
Y
PWR
DONE
g
OV
E
R
TEMP
Summary of Contents for 7500NB
Page 1: ...7500 SERIES 7500NB 7500WB ROUTERS Instruction Manual 071810700 FIRST PRINTING JULY 2001 ...
Page 6: ...vi 7500 Series Instruction Manual Contents ...
Page 8: ...viii 7500 Series Instruction Manual Preface ...
Page 16: ...xvi 7500 Series Instruction Manual ...
Page 58: ...3 10 7500 Series Instruction Manual Section 3 Configuration ...