House Keeping Alarm/Control Interface - NEC PASOLINK+ Manual

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PASOLINK 155 MB 1+0/1+1 SYSTEM
1+1 Equipment
LED indication
MAINT
ODU ALM1
IDU ALM1
ODU ALM2
IDU ALM2
PWR1
PWR2
TX1
TX2
RX1
RX2
Note: The same fails of No.1/No.2 indicate IDU ALM1 and IDU ALM2 at the same time.
TX1/2 and RX1/2 indication available only in case of 1+1 IDU.
6.7

House Keeping Alarm/Control Interface

Data In/Data Out (DI/DO) for house keeping alarms or controls are available with LCT setting.
DI/DO item number is changeable by setting LCT configuration.
DI DO
6 ports 4 ports (Max)
Port condition
: Normal OPEN ( > 200 kohms)
DI INPUT Logic
Event CLOSE ( < 50 ohms)
Interface circuit : Photo coupler with bias circuit
OUTPUT Device : Indicates Status on PNMS/T
+3.3 V +3.3 V
Condition
During maintenance
ODU No.1 Equipment fail
IDU No.1 Equipment fail
ODU No.2 Equipment fail
IDU No.2 Equipment fail
No.1: On power
No.2 : On power
No.1 TX output
No.2 TX output
No.1 RX selected
No.2 RX selected
DI : DI interfaces are included in ALM/AUX connector.
DO: Refer to next page "alarm output connection table".
.
Open
Close
Event Close
Comments
DO OUTPUT logic
Interface circuit
Maximum Current
Maximum Voltage : 100 V (AC + DC)
Relay
- 26 -
MTD-PL-028/141005
Color
Yellow
Red
Red
Red
Red
Green
Green
Green
Green
Green
Green
: Controlled from PNMS/T
: Relay Form C
: 0.2 A
Event Open
Event Close
COM