CHAPTER 3 NDA-24296
Page 246
Revision 1.0
PA-8COTBJ
Central Office Trunk
5. Switch Settings
Standard settings of switches on this circuit card are shown in the table below.
SWITCH SWITCH
NO. SETTING STANDARD
SETTING MEANING
SW00
(MB)
UP Circuit card make busy
DOWN ×Circuit card make busy cancel
SW01
(MB0-7)
ON Request for make-busy of the trunk circuit corre-
sponding to MB switch.
OFF ×Reque st for canc elli ng t he make -b usy of t he tr unk c ir -
cuit corresponding to MB switch.
SW02 1-4
Terminal Impe dance and B.N.W.setting
SW03
1OFF ×Fixed to OFF (Not Use d)
2OFF ×Fixed to OFF (Not Use d)
3OFF ×Fixed to OFF (Not Use d)
4OFF ×Fixed to OFF (Not Use d)
SW04
1ON ×Fixed to ON
2OFF ×Fixed to OFF
3OFF ×Fixed to OFF
4ON Paging Trunk is available (When this switch i s set to
ON, CH0 and CH1 cannot be used as CO trunks.)
OFF Paging Trunk is not available.
SW05
1OFF ×Fixed to OFF
2ON ×Fixed to ON
3OFF ×Fixed to OFF
4OFF ×Fixed to OFF
SW0 (SW10) MEANINGS
1234 B.N.W. Terminal
Impedance
OFF OFF OFF OFF EIA/TIA 464-A 600 +2.16 µ
OFF ON ON OFF CCITT Q.517 900 +2.16 µ
ON ON ON OFF 900
Other Combinat ions Inhibited