user manual

CHAPTER 4 ND-45504 (E)
Page 74
Revision 2.0
PN-24DTA (DTI)
The figure in the SWITCH NAME column and the position in in the SETTING POSITION col-
umn indicate the standard setting of the switch. When the switch is not set as shown by the figure and
, the setting of the switch varies with the system concerned.
Note 1:
Set the groove on the switch knob to the intended switch position.
Note 2:
When the power is on, flip the MB switch to ON (UP position) before plugging/unplugging the circuit
card.
Note 3:
Set SW-1 and SW-2 as follows:
Note 4:
When the PBX is the master office, set the SW-1 and SW-2 on all the DTI cards mounted in PIM0 to
“OFF”.
Switch Settings (Continued)
SWITCH
NAME
SWITCH
NUMBER
SETTING
POSITION
FUNCTION CHECK
JPS (Jumper pin) Neutral grounding on the transmitting line is not provid-
ed.
Left
Neutral grounding on the transmitting line is provided.
JPR0 (Jumper pin) Neutral grounding on the receiving line is not provided.
Down
Neutral grounding on the receiving line is provided.
JPR1 (Jumper pin)
Right
Line impedance : 110 ohms
Line impedance : 100 ohms
DTI0 DTI1 DTI2 DTI3 DTI4
REMARKS
SW
-1
SW
-2
SW
-1
SW
-2
SW
-1
SW
-2
SW
-1
SW
-2
SW
-1
SW
-2
When one DTI is
provided ON OFF
The MP card receives the clock
signal from DTI0 at its PLO0 in-
put.
When more than one
DTI is provided
ON OFF OFF ON OFF OFF OFF OFF OFF OFF
The MP card receives the clock
signal from DTI0 at its PLO0 in-
put under normal conditions.
Should a clock failure occur with
DTI0, the MP card switches to the
PLO1 input, which gets clock
from DTI1.
Right
Up
Left
CONDITIONS
SW
NO. OF DTI