NEC PASOLINK Training Course page 40

OPERATION
Table 3-1 Interface Terminals and Jacks in 1+0 system (4/8)
Terminal
Pin 13
ALM/AUX ALM
(D-sub Connector, 37 Pins)
Pins 1 (COM), 2 (NO) and
3 (NC)
Pins 4 (COM), 5 (NO) and
6 (NC)
Pins 20 (COM), 21 (NO)
and 22 (NC)
Pins 23 (COM), 24 (NO)
and 25 (NC)
Pin 7
Pin 8 (G)
Pin 9
3-6
Ground
1
Notes:1. * Optional
2. Both ASC and DSC 64K cannot be used
simultaneously.
Alarm and transmission network surveillance auxiliary alarm
input/output
Transmitter alarm output*
Normal state :
Alarm state :
3
Receiver alarm output*
Normal state :
Alarm state :
BER alarm output when BER worse than 10
3
(selectable)*
Normal state :
Alarm state :
Maintenance alarm output*
Normal state :
Alarm state :
3
Note:* The BER threshold values and alarm items are set
in factory (default). To change the setting of alarm
items by the PC, refer to Section 3.4.1 "Alarm
Table" of this Manual.
(Housekeeping alarm input through optional PM CARD.)
Input 11
Input 12
Input 21
Description
3
Between Between
Pins 1 and 2 Pins 1 and 3
Open Closed
Closed
Between Between
Pins 4 and 5 Pins 4 and 6
Open Closed
Closed
-6
/10
Between Between
Pins 20 and 21 Pins 20 and 22
Open Closed
Closed
3
Between Between
Pins 23 and 24 Pins 23 and 25
Open Closed
Closed
ROI-S04488
Open
Open
-5 -4 -3
/10 /10
Open
Open