Oki B4100 - Manual (Page 498)

40055101TH Rev.4
498 /
Figure A3.14.1 Relationship between UNC and TELU for US Version
UNC
CN2-1
1a
2a
3a
4a
5a
6a
CN2-2
1b
2b
3b
4b
5b
6b
CN1
1
2
3
4
5
6
LINE
TEL-2
TEL-1
Dial pulse genelator
Ringing detection
Hookup detection
Relay driver
Sending level
Receiving level
L2
L1
Option
HOOK CN2
3
4
2
1
CN2
1
2
3
4 HAND
SET
Speech
Circuit
3
4
2
1
CN1
CN3
1
2
3
4
5
6
TELU
OFF
ON HOOK
HOOK
DB1