– 451 –
NWA-008841-001 Rev.5.0
90ch3003.fm
SWITCH NAME
SWITCH
NUMBER
SETTING
POSITION
FUNCTION
CHECK
SW0
(Piano Key SW)
5
NOTE 5
Set equalizer according to the cable
length between the PBX and the C.O. or
CSU.
• For DS-1 (SW1-3 ON)
• For DSX-1/Hong Kong/Taiwan
(SW1-3 OFF)
OFF
6
NOTE 5
OFF
7
NOTE 5
OFF
8
Not used
Continued on next page
OFF
ON
5
6
7
8
1
2
3
4
ON
ON
SW0-5 SW0-6 SW0-7
CABLE LENGTH TO CSU (0.5
φ
)
OFF ON
Signal is not sent
ON
ON
ON
ON
ON
OFF
ON
OFF OFF
OFF
OFF OFF
0-599 m (0-1965 ft.)
599-1199 m (1965-3930 ft.)
1199-1758 m (3930-5764 ft.)
Not used
OFF
80-120 m (262.5-394 ft.)
SW0-5 SW0-6 SW0-7
CABLE LENGTH TO CSU (0.65
φ
)
ON
ON
0-40 m (0-131.2 ft.)
40-80 m (131.2-262.5 ft.)
120-160 m (394-525 ft.)
160-200 m (525-656 ft.)
Signal is not sent
ON
ON
ON
ON
ON
OFF
OFF
ON
OFF
ON
OFF ON
OFF
OFF OFF
ON
ON
OFF
PN-24PRTA (PRT)