2-10
UNIT DESCRIPTIONS
l
The front panel switches
N
AME
D
ESCRIPTION
RESET switch
Active The Hardware RESET of DT-2000N/NF
TEST switch
toggles the LED test and display REMOTE LED
--> LED Test --> Remote LED Display
l
The LED indicators
N
AME
S
TATUS
D
ESCRIPTION
Red
Controlling by the NMC-32 Controller
SEL
LED
Off
DT-2000N/NF is not online with NMC-32 Controller
Red
Hardware failure or HDSL loopback, self-tests failure
Yellow
power-on self-testing or HDSL loopback self-testing
STAT
LED
Green
No failure detected after self-tests
Green
Means “Central Side” setup
C/R
LED
Off
“Remote Side” setup
Red
E1 LOS condition (LOS condition has higher priority than
BER)
Yellow
E1 BER condition
E1 LOS/BER
LED
Off
no LOS/BER condition
Red
HDSL Loop Power is inactive
(DT-2000NF2 only)
Yellow
SNR of any HDSL loop is below a predefined threshold
HDSL
CONT/SNR
LED
Off
SNR of all loops are good
Green
HDSL loop in good condition
Red
HDSL loop LOSW condition
LOOP 1/2
LOSW/BER
LED
Yellow
HDSL loop BER condition
Yellow
there is an alarm condition
ALM
LED
Off
Normal condition
Yellow
Alarm detected on the Remote Side
RMT ALM
LED
Off
No Alarm on the Remote Side.
Green
HDSL loopback is active
Yellow
HDSL loopback with test pattern is active
Red
E1 loopback with test pattern is active and errors are
detected
TEST
LED
Off
Loopback Function is inactive
Yellow
responding to NMC-32 Controller regular polling
SCAN
LED
Off
DT-2000N/NF is not online
Содержание DT-2000 Series
Страница 6: ...CHAPTER 1 INTRODUCTION CONTENT 1 1 General Description 1 2 Specifications 1 3 Module List...
Страница 7: ......
Страница 14: ...CHAPTER2 Unit Description CONTENT 2 1 General Description 2 1 1 Desktop Units 2 1 2 Rack Mounted Units...
Страница 15: ......
Страница 26: ...UNIT DESCRIPTIONS 2 11 This page is intentionally left blank...
Страница 27: ......
Страница 29: ......
Страница 41: ...3 12 INSTALLATIONS This page is intentionally left blank...
Страница 42: ......
Страница 69: ...4 26 OPERATING MAINTENANCE This page is intentionally left blank...