NEC PASOLINK Training Course page 47

ROI-S04488
Table 3-2 Interface Terminals and Jacks of 1+1 System (3/9)
Terminal
OW/DSC/ASC
(D-sub Connector, 25 Pins)
Pins 1 (+) and 2 (−)/
2
Pins 1 and 2*
Pins 3 (+) and 4 (−)/
2
Pins 3 and 4*
Pins 5 (+) and 6 (−)
Pins 7 (+) and 8 (−)
Pins 9 (+) and 10 (−)
Pins 11 (+) and 12 (−)
Pins 14 (+) and 15 (−)/
Pins 14 and 15*
Pins 16 (+) and 17 (−)/
Pins 16 and 17*
Pins 18 (+) and 19 (−)
Pins 20 (+) and 21 (−)
Pins 22 (+) and 23 (−)
Pins 24 (+) and 25 (−)
Pin 13
Engineering orderwire (EOW), digital service channel (DSC),
analog service channel (ASC) and ALARM signal input/output
ASC1 input (VF) (optional) or Alarm1*
Notes: 1. *
2. Cluster Alarm 1 input (photocoupler)
ASC2 input (VF) (optional) or Alarm2*
Notes: 1. *
2. Cluster Alarm 2 input (photocoupler)
EOW input (VF)
64 kHz clock input*
DSC1 input (RS-232C, 64K (G.703)*
DSC2 input (RS-232C, RS-422 or RS-485)
ASC1 output (VF) (optional) or Alarm1*
2
Notes: 1. *
2. Cluster Alarm 1 output (relay contact)
ASC2 output (VF) (optional) or Alarm2*
2
Notes: 1. *
2. Cluster Alarm 2 output (relay contact)
EOW output (VF)
64 kHz clock output*
DSC1 output (RS-232C, 64K (G.703)*
DSC2 output (RS-232C, RS-422 or RS-485)
Ground
Notes:1. *
2. Both ASC and DSC 64K cannot be used
simultaneously.
Description
2
Applies to the ALM INTFC module.
Normal signal in : Open
Alarm signal in : Closed
2
Applies to the ALM INTFC module.
Normal signal in : Open
Alarm signal in : Closed
1
2
Applies to the ALM INTFC module.
Normal signal out : Open
Alarm signal out : Closed
2
Applies to the ALM INTFC module.
Normal signal out : Open
Alarm signal out : Closed
1
1
Optional
OPERATION
2
input (optional)
2
input (optional)
1 1
or 64K (V.11)* )
2
output (optional)
2
output (optional)
1 1
or 64K (V.11)* )
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