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IMPORTANT: Electronic devices are susceptible to lightning and power station electrical
surges from both the AC outlet and the telephone line. It is recommended that a surge
protector be installed to protect against such surges.
15V AC
Adapter
(included)
Installation Using
Wire Terminals:
Analog PABX/KSU
Station, FXS Port,
VoIP Analog Port,
or any other ring
generating device
To Analog Phone, Analog
PABX/KSU Trunk Input, etc.
* IMPORTANT: "LINE IN" is polarity sensitive. If wired in reverse polarity, the RG-204 may trip ringing
after the first ring.
The RG-204 has 4 analog line circuits that pass through the unit. When any line is idle, the RG-204
provides a "copper-thru" path from input to output. Whenever the RG-204 detects a ringing signal on
any incoming line, that output is switched to its dedicated internal sine wave ring generator to ring the
phones. In between rings the RG-204 switches that line back to "copper-thru" so caller-ID may pass
through. When the line is answered and in use, the RG-204 again provides a "copper-thru" path from
input to output. There are 4 front panel Channel LEDs showing the status of each of the 4 line circuits.
Each LED lights dim showing the line is not ringing and in the "copper-thru" state. The LED will light
bright when ringing is being generating. If a ring generator's fault protection circuit engages, that
Channel LED will go out. A fault may possibly be reset by momentarily unplugging power to the RG-
204 for a few minutes. Unplugging power to the RG-204 will not drop any calls, nor disable the ability
to make inbound or outbound calls, although inbound ringing will not be boosted.
Installation and Wiring
VIKING
FOUR CHANNEL RING BOOSTER
PWR
15 VAC
PWR
1 2 3 4
1: Line In*
Tip (+)
2: Line In*
Ring (-)
3: Line Out
4: Line Out
MODEL RG-204
©
VIKING
ELECTRONICS
HUDSON, WI 54016
5 6 7 8
11
Operation
2
13 14 15
16
Optional Modular
Jack Installation:
To Analog Phone, Analog
PABX/KSU Trunk Input, etc.
Analog PABX/KSU
Station, FXS Port, VoIP
Analog Port, or any other
ring generating device
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