B. Tip/Ring Interface
erly on your telephone. Start with the wiring protocol switch set to the "A" position.
4 5
The HD-1 can be installed on your console's auxiliary
o n
F a
6
Internal View of the HD-1
P rro
It is ideal for creating a stand alone door/gate security keypad control when used in conjunction with Viking model RC-2A or RC-3.
C. Talk Battery Interface
Step 4. If tones are still not heard, slide the wiring protocol switch to the "C"
6 6
9V Battery
c tt S
1
e rra
J1 Handset Interface
Step 5. If Touch Tones are severely distorted beyond what the volume control
Attenuation Jumper
x B
for operating instructions.
More (+)
wiring protocol switch to the "B" position and try again.
and then fine tune with volume control.
J2
5 ..3
L iin
year.
3
A. Handset Interface
p e
Wiring Protocol Switch
8 6
Connector
Note: All outgoing calls must be dialed with your console's keypad. Once the call is connected, you may use the HD-1.
p p
Less (-)
pressed. If the LED does not light, replace the 9V battery by removing the back cover. The average battery life is approximately 1
Step 3. If Touch Tones are not heard, remove the back cover and slide the
5 ..3
9V Battery
J1
J4
F
handset to inject the DTMF signal, simply move the
L iin
Step 2. Enter several Touch Tones with the HD-1. The person on the
6 ..4
8 6
6 ..8
C
Fax Back Doc 405
Attenuation Jumper
1 & 2 as shown below. Refer to Operation, section A
O
The HD-1 is equipped with a battery test circuit and LED indicator. The battery O.K. LED should light when a key on the keypad is
2
Touch Tone
C B A
Volume Control
3 4
O p
J5 Touch Tone
J2
3
Due to the dynamic nature of the product design, the information contained in this document is subject to change without notice. Viking Electronics, and its affiliates and/or subsidiaries
o d
5
D. Console Auxiliary Handset Jack
3 8
J3 Talk Battery Interface
7 1
2
7 1
6 6
Step 6. If tones are still too distorted, move J5 to the "C" (maximum) position
8 6
For more information on Viking's RC-2A, retrieve Fax Back Document 160. For more information on Viking's RC-3, retrieve Fax
o rrtt L
a c
position and repeat.
J2 Tip/Ring Interface
Connector
Printed in the U.S.A.
Back Document 165.
J6 Dummy Phone Load
C B A
Optional PS-1A
4 3
e ......7
4
P
ZF290995 Rev 3
1 5
assume no responsibility for errors and omissions contained in this information. Revisions of this document or new editions of it may be issued to incorporate such changes.
D. Battery O.K. LED
B
The Talk Battery interface is used for any application where PABX or C.O. talk battery is not available or is too cumbersome to use.
J1
u c
The HD-1 may require some volume and wiring protocol adjustments to function prop-
p o
The Tip/Ring interface is an easy solution to the over attenuated Touch Tone output caused by certain consoles with built in AGC
Connector
1
3 8
handset jack. To eliminate the need for an additional
extension you called should hear loud clear Touch Tones.
n
n e
d u
Replaceable 9V
A
J5 Touch Tone
Jumper
J4 13.8V AC
can attenuate, move J5 to the "B" position and retry.
B a
Internal View of the HD-1
Step 1. Make a test call to an in-house PABX extension.
Wiring Protocol Switch
jumper on J6 (dummy phone load jumper) to positions
Connection for
e ......7
S u
n e
k L
1 5
J3
a x
c k
J3
Modular Handset Jack
Alkaline Battery
The HD-1 can be used by simply going off-hook with your phone, and dialing on the HD-1.
u p
J4
(Automatic Gain Control) in their handset transmit circuitry. Connect Tip/Ring interface cord as explained in Installation section B.
a ttiio
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