Oki OKIFAX 5400 Maintenance Manual page 315

UNC/WN5/FN5/DN5
3. Explanation on CN3 Terminals
CN3 Terminal
pin No. name
1 REV2
2 OH2
3 OH1
4 RI
5 NC
6 PP
7, 8 E
9, 10 sub + 5 V
11, 12 + 5 V
13, 14 + 5 VA
15, 16 S
17, 18 – 5 VA
19, 20 R
21, 22 SG
23, 24 Rp
25 DP
26 CML
27 F. ICC
28 SR
29 PBXE
30 MUTE
Note *: Unused.
40838301TH Rev.1
Explanation
Detection and output of the direction of DC
line current.
Detection of off-hook of terminal connected
to TEL-1 or TEL-2.
Output upon circuit current detection
after fax line seizure
0 - 5 V signal output synchronized with the
ringing signal frequency
Unused terminal
Relay control signal for special service code
detection at parallel pickup or remote reception
GND
Sub power supply for OH2 and RI detection
Power supply for relays and logic circuits
+5 V power supply for analog circuit
TX Signal
– 5 V power supply for analog circuit
RX Signal
Signal ground
Receiving sensitivity determination terminal
Pulse dial control signal
Line seizure control signal
Loop current control signal upon line seizure
Control signal for connection between LINE and
TEL terminals
Control signal for connecting one of LINE
terminal to the PBXE terminal
Control signal for pulse dial improvement and
bell shunt relay
UNC
(US.CA)
*
*
*
*
*
*
*
*
A3 - 34
WN5 DN5 FN5
(INT'L) D.A.CH) (F.UK)
* * *
* * *
* * *
* *
* *
* *
* *