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Note: The unit can also be powered
by 24-48V DC PABX battery supply on
terminals 50 and 25.
Important: This unit is not protected against damage from power line surges. A surge protector is recommended if
operated on 120V AC.
A. Power Fail Bypass Unit
It is recommended that the first six C.O. lines be interfaced with the
PF-6A as shown in the chart to the right.
If your system has an alarm contact or manual transfer switch, you
must connect it to the red and green wires of the modular jack labeled
EXTERNAL ALARM on the left side of the PF-6A. This must be a
normally open maintained contact closure. If normally closed alarm
contacts are used, wire them to break the power to the PF-6A when
they open.
Normally Open
Maintained
Contact Input
C.O. Line
PABX/KSU
Note: Loop start and ground start CO lines may be combined on the
PF-6A (see Programming). When ground start lines are used, pin 50
(V/S) must be connected to a good earth ground.
Installation
1
2
3
TEST
AUTOMATIC LINE
TRANSFER SWITCH
Normally Open
EXTERNAL
ALARM
Contact Input
VIKING
POWER
1
2
3
4
TEST
AUTOMATIC LINE
TRANSFER SWITCH
EXTERNAL
ALARM
VIKING
©
MODEL PF-6A
POWER
ACTIVE
VIKING ELECTRONICS, INC. HUDSON, WI 54016
RJ21X Male
Connector
(not included)
4
RJ21X
©
MODEL PF-6A
ACTIVE
VIKING ELECTRONICS, INC. HUDSON, WI 54016
POWER and ACTIVE LED - The POWER LED and the ACTIVE LED
will be lit when the PF-6A is in the normal operating mode. The
ACTIVE LED will go out and the POWER LED will stay lit when the test
button is pressed.
RJ21X
Test Button
Dip Switches
RJ21X Female Connector
Circuit
Trunk/station
Line
T1T-IN
Trunk 1 - IN
T1R-IN
T1T-OUT
Trunk 1 - OUT
T1R-OUT
Circuit 1
S1T-IN
Station 1 - IN
S1R-IN
S1T-OUT
Station 1 - OUT
S1R-OUT
T2T-IN
Trunk 2 - IN
T2R-IN
T2T-OUT
Trunk 2 - OUT
T2R-OUT
Circuit 2
S2T-IN
Station 2 - IN
S2R-IN
S2T-OUT
Station 2 - OUT
S2R-OUT
T3T-IN
Trunk 3 - IN
T3R-IN
T3T-OUT
Trunk 3 - OUT
T3R-OUT
Circuit 3
S3T-IN
Station 3 - IN
S3R-IN
S3T-OUT
Station 3 - OUT
S3R-OUT
T4T-IN
Trunk 4 - IN
T4R-IN
T4T-OUT
Trunk 4 - OUT
T4R-OUT
Circuit 4
S4T-IN
Station 4 - IN
S4R-IN
S4T-OUT
Station 4 - OUT
S4R-OUT
T5T-IN
Trunk 5 - IN
T5R-IN
T5T-OUT
Trunk 5 - OUT
T5R-OUT
Circuit 5
S5T-IN
Station 5 - IN
S5R-IN
S5T-OUT
Station 5 - OUT
S5R-OUT
T6T-IN
Trunk 6 - IN
T6R-IN
T6T-OUT
Trunk 6 - OUT
T6R-OUT
Circuit 6
S6T-IN
Station 6 - IN
S6R-IN
S6T-OUT
Station 6 - OUT
S6R-OUT
Station or trunk
GND
control line
-24/48V
Pins Color
26
W/BL
1
BL/W
27
W/O
2
O/W
28
W/G
3
G/W
29
W/BN
4
BN/W
30
W/S
5
S/W
31
R/BL
6
BL/R
32
R/O
7
O/R
33
R/G
8
G/R
34
R/BN
9
BN/R
35
R/S
10
S/R
36
BK/BL
11
BL/BK
37
BK/O
12
O/BK
38
BK/G
13
G/BK
39
BK/BN
14
BN/BK
40
BK/S
15
S/BK
41
Y/BL
16
BL/Y
42
Y/O
17
O/Y
43
Y/GN
18
GN/Y
44
Y/BN
19
BN/Y
45
Y/S
20
S/Y
46
V/BL
21
BL/V
47
V/O
22
O/V
48
V/GN
23
GN/V
49
V/BN
24
BN/V
50
V/S
25
S/V
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