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S3
12
11
10
9
S2
8
7
6
5
S1
4
3
2
1
ON OFF
Rear View of the SQRG-12
2. Wiring Table for the TMS-6X
ROW 1
Loop/Ground Start
C.O. Lines
1T
1R
2T
2R
3T
3R
4T
4R
5T
5R
6T
6R
* Earth Ground
ROW 2
TMS-6X
L1, G
L1, R
L2, BK
L2, Y
L3, W
L3, BL
L4, G
L4, R
L5, BK
L5, Y
L6, W
L6, BL
ROW 3
SQRG-12
Pin, 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
50, V/S
ROW 4
Open
ROW 5
SQRG-12
Pin, Color
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/G
18, G/Y
ROW 6
Loop/Ground Start
C.O. Lines
1T
1R
2T
2R
3T
3R
4T
4R
5T
5R
6T
6R
Note: For proper ground
start operation, DIP switches
1-12 must be set to OFF as
shown above.
* Note: Earth Ground is only required in ground start applications.
Notes: If the PABX does not recognize lines on the TMS-6X as busy and call crashing is observed, set up those lines as “incoming only trunks” on the PABX. If those lines
must be used for inbound and outbound calls, you must use the special software TMX-PRAL. Contact Viking product support at (715) 386-8666 for more information. Do not
install bridging clips on any connections which connect the two halves of the punch down terminal block. Bridge clips should only be installed as a method of bypassing equip-
ment. In order for the SQRG-12 to work properly, the four-wire modular jack must be installed between the TMS CONTROL LINE on the SQRG-12 and the SQRG jack on the
TMS-6X or TMS-12A.
RJ21X Male Jack
(not included)
13.8V AC
Adapter
(included)
Siemans
# 566B3-50
Marconi
# R66B3-50
1-12 C.O. Lines
Punchdown
Terminal
Block with
Split Center
(not included)
(V/S)
Earth Ground
SEQUENTIAL RING
GENERATOR
VIKING ELECTRONICS INC. HUDSON, WI 54016
VIKING
©
MODEL SQRG-12
POWER
13.8V AC
1.25A MAX
RESET
TMS
CONTROL LINE
1 2 3 4
ON
1 2 3 4
RJ21X
J2
RJ21X
J2
Trunk Inputs
of PABX/KSU
Note: Earth ground is required
in ground start applications.
Ground Start or
Ring All Lines
Loop Start
1 2 3 4
ON
ON
OFF
DIP
Switches
Rear View of the TMS-12A
MUSIC
Viking Electronics, Inc.
Hudson, WI 54016
POWER
13.8VAC
INPUTS / OUTPUTS
WARBLE
VOLUME
SQRG-12
TMS-RDMA
TMS-RDMA
ON
9 10 11 12
B. Installing the SQRG-12 with the TMS-12A
1. Wiring
S3
12
11
10
9
S2
8
7
6
5
S1
4
3
2
1
ON OFF
Rear View of the SQRG-12
2. Wiring Table for the TMS-12A
ROW 1
Loop/Ground Start
C.O. Lines
1T
1R
2T
2R
3T
3R
4T
4R
5T
5R
6T
6R
7T
7R
8T
8R
9T
9R
10T
10R
11T
11R
12T
12R
* Earth Ground
ROW 2
TMS-12A
Pin, 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
44, Y/BN
ROW 3
SQRG-12
Pin, 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
50, V/S
ROW 4
Open
ROW 5
SQRG-12
Pin, Color
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/G
18, G/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/G
23, G/V
49, V/BN
24, BN/V
ROW 6
Loop/Ground Start
C.O. Lines
1T
1R
2T
2R
3T
3R
4T
4R
5T
5R
6T
6R
7T
7R
8T
8R
9T
9R
10T
10R
11T
11R
12T
12R
Note: For proper ground
start operation, DIP switches
1-12 must be set to OFF as
shown above.
* Note: Earth Ground is only required in ground
start or master / slave applications.
DIP Switch
2
3
11
Position
UP
DOWN
UP
DIP Switch
2
3
11
Position
DOWN
UP
UP
Loop Start TMS-12A DIP Switches
Ground Start TMS-12A DIP Switches