NEC 151944 Manuale Utente
CHAPTER 3
ND-46550 (E)
Page 22
Revision 2.0
Revision 2.0
Note 1:
Set the groove on the switch knob to the desired switch position.
Note 2:
Since DAIA card acts like an FP, the SW1 for DAIA in FPs cannot be set to the same number.
Note 3:
When power is on, flip MB switch to ON (UP position) before plugging/unplugging the circuit card.
Note 4:
When the clock signal from a master office is supplied via the line between the Main Site and the Remote
Site, set the SW1-1 and SW1-2 according to settings in
Site, set the SW1-1 and SW1-2 according to settings in
. In this case, DAIA cards (DAIA0,
DAIA1) must be mounted in PIM0.
SW3 (Dip SW)
1
Set equalizer according to cable length between
system and CSU.
system and CSU.
OFF
2
OFF
3
OFF
4
Always set to OFF
JPS (Jumper pin)
Right
For mounting this card on PIM1 ~ PIM7
Left
For mounting this card on PIM0
JPR (Jumper pin)
Right
Neutral grounding on the receiving line is provided.
Neutral grounding on the receiving line is not
provided.
provided.
Table 3-3 Switch Settings When Clock Signal Supplied From Master Office
CONDITIONS
DAIA0
DAIA1
DAIA2
REMARKS
SW1-1
SW1-2
SW1-1
SW1-2
SW1-1
SW1-2
Only one DAIA
card is provided.
card is provided.
ON
OFF
-
-
-
-
Clock signal is sent to
PLO0 of MP card via
supply route 0 (DAIA0).
PLO0 of MP card via
supply route 0 (DAIA0).
Two or three DAIA
cards are provided.
cards are provided.
ON
OFF
OFF
ON
OFF
OFF
Clock signal supply route
is automatically changed
to route 1 (DAIA1) if
transmission line failure
occurs on supply route 0.
is automatically changed
to route 1 (DAIA1) if
transmission line failure
occurs on supply route 0.
Table 3-2 Switch Settings on PN-DAIA Card (Continued)
SWITCH
NAME
SWITCH
NUMBER
SETTING
POSITION
FUNCTION
CHECK
ON
2
1
3
4
ON
SW-1 SW-2 SW-3
CABLE LENGTH
ON
ON
ON
0 - 131.2 ft. (0 - 40 m)
ON
ON
OFF
131.2 - 262.5 ft. (40 - 80 m)
ON
OFF
ON
262.5 - 394 ft. (80 - 120 m)
ON
OFF
OFF
394 - 525 ft. (120 - 160 m)
OFF
ON
ON
525 - 656 ft. (160 - 200 m)
OFF
OFF
OFF
Signal is not sent
ON
ON
OFF
Left