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Tape Recorder
Description
Tape Recorder/Player
DC Adapter for Tape Player
PABX/KSU Trunk Port
Observing Phone
No-KSU Phone
A. Analog Phones
Wire the SO-24 in parallel with up to 24 C.O. lines, Centrex lines or analog PABX/KSU stations using the wiring
table above.
B. Digital Phones
The SO-24 may also be installed to monitor digital systems. This will require an extra pair of wires run to each
phone. The audio must be taken from the pair of wires going to the receiver (earpiece) for each of the stations to be
observed, using the wiring table above. Retrieve Fax Back Document 819 for more information on digital system
interfaces.
Installation
3/32" cable included
1/8" cable included
Recommended Radio Shack
Part Numbers
14-1115 or 14-1117
273-1802
-or-
-or-
VIKING
SERVICE OBSERVING UNIT
MODEL SO-24
1
2
3
4
POWER
VIKING ELECTRONICS, INC. HUDSON, WI 54016
2 Digit Codes
Line or
Switch 1 OFF
Switch 1 ON
Dial
Dial
Station
10
40
1
11
41
2
12
42
3
13
43
4
14
44
5
15
45
6
16
46
7
17
47
8
20
50
9
21
51
10
22
52
11
23
53
12
24
54
13
25
55
14
26
56
15
27
57
16
30
60
17
31
61
18
32
62
19
33
63
20
34
64
21
35
65
22
36
66
23
37
67
24
25
©
Pins
Color
26/1
W-BL/BL-W
27/2
W-O/O-W
28/3
W-G/G-W
29/4
W-BN/BN-W
30/5
W-S/S-W
31/6
R-BL/BL-R
32/7
R-O/O-R
33/8
R-G/G-R
34/9
R-BN/BN-R
35/10
R-S/S-R
36/11
BK-BL/BL-BK
37/12
BK-O/O-BK
38/13
BK-GN/GN-BK
39/14
BK-BN/BN-BK
40/15
BK-S/S-BK
41/16
Y-BL/BL-Y
42/17
Y-O/O-Y
43/18
Y-G/G-Y
44/19
Y-BN/BN-Y
45/20
Y-S/S-Y
46/21
V-BL/BL-V
47/22
V-O/O-V
48/23
V-G/G-V
49/24
V-BN/BN-V
50/25
V-S/S-V
Observing Port
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