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DR-10 Dial Up Remote Control 1
CircuitWerkes
Technical Manual
CircuitWerkes
http://www.circuitwerkes.com
(352) 335-6555 · Fax (352) 380-0230
3716 SW 3
rd
Place · Gainesville, FL 32607 U.S.A.
c 1992-1997 CircuitWerkes All Rights Reserved. All information contained within is proprietary.
No part of this manual may be reproduced or copied without the express written consent of CircuitWerkes.
DR-10
Dial-up Remote Control
and Audio Interface
401a (v1.30) 2
Contents
O
PERATIONAL
O
VERVIEW
.................................................................................................... 3
G
ETTING
S
TARTED
Q
UICKLY
................................................................................................ 3
C
ONNECTIONS
................................................................................................................... 4
D
EFAULT
S
ETTINGS
............................................................................................................ 5
D
EFAULT

RELAY
S
ETUP
....................................................................................................... 6
S
TATUS
I
NPUTS
................................................................................................................. 6
U
SING

THE

STATUS

INPUTS

AS

ALARM

INPUTS
........................................................................ 7
A
UDIO

FLOW

DIAGRAM
....................................................................................................... 7
O
PERATION

AND
P
ROGRAMMING
D
ETAILS
............................................................................. 8
D
IRECT
A
CCESS
F
UNCTIONS
................................................................................................ 8
SETUP MODE. ............................................................................................................. 9
S
ETUP
V
ARIABLES
........................................................................................................... 10
A
BOUT

CODE

SELECTION
. ................................................................................................... 11
DR-10 P.C.B
OARD
L
AYOUT
............................................................................................ 12
DR-10 A
UDIO
/T
ELCO
S
CHEMATIC
.................................................................................... 13
DR-10 L
OGIC
S
CHEMATIC
............................................................................................... 14
T
ROUBLE
S
HOOTING
G
UIDELINES
........................................................................................ 15
O
PERATIONAL
E
XAMPLES
................................................................................................. 16
A
PPENDIX
B .................................................................................................................... 17
{I
NFORMATION

THE
FCC
MAKES

US

INCLUDE
...} ................................................................ 17
C
IRCUIT
W
ERKES
L
IMITED
W
ARRANTY
............................................................................... 18
R
EPAIR

OR

SERVICE

INFORMATION
....................................................................................... 18
Contacting CircuitWerkes
If you need technical assistance or product information for any of our products please feel free to
call us at (352) 335-6555 from 10am to 6pm Eastern time Monday through Friday. You can fax
questions or comments to us at (352) 380-0230. We ALWAYS value feedback from our customers!
You can also email us. Our email address is info@circuitwerkes.com. You can download any of our
current tech manuals from our Internet web site at http://www.circuitwerkes.com/. In addition to the
manuals, current product information sheets can be found there as well.
S
ILENCER
& CP-1
INFORMATION
(
IF

YOUR
DR-10
IS

SO

EQUIPPED
)
IS

AT

THE

END

OF

THIS

MANUAL
. 3
The CircuitWerkes DR-10 Dial-up Remote Control and Audio Interface
Thanks for buying the CircuitWerkes DR-10 dial-up remote control and audio interface. The DR-10
comes ready to plug in and start working; we've factory programmed it with default settings that will
make it immediately useful for a large number of purposes. Of course, just about everything that
has a default setting can be customized by the user if needed
O
PERATIONAL
O
VERVIEW
The DR-10 is a microprocessor based remote control that lets you operate your station's equipment
from anywhere there's a phone. It automatically answers the phone on a user set number of rings
and waits for you to enter your password (from none to 8 digits). After entering your password, a
dedicated relay closes that you can use as an external control or an unlocked indicator. Now you
have complete control of the DR-10's main relays. They can be individually programmed for
momentary (leading edge or trailing edge), latching or interlocked operation. Each relay can be
programmed to decode any of the 16 DTMF tones. Any relay can be tied to any other for modes
such as latching and interlocked. Relays can return a beep acknowledge tone that tells you when
you've activated an output. The DR-10 allows one or two digit relay codes and features our famous
anti-falsing delay (now adjustable) that helps prevent accidental contact closures when you're using
it for remote broadcasts.
The DR-10 has four logic level inputs that can be set up as query-only status inputs or can be
programmed to automatically activate any relay and/or call your pager or other telephone number.
When an alarm happens, the DR-10 can tell you which channel caused the alarm with a series of
beeps. Each status/alarm input can dial a different number up to 24 digits long including pauses.
The DR-10 features an audio hybrid that allows you to control the unit while monitoring an external
audio source. That makes the DR-10 a great choice for EBS/EANS monitoring, remote controlled
audio switcher, etc. Of course, an active, balanced telephone audio feed is brought out so that you
can put the telephone audio on the air or into a recorder. An external audio input lets you control
the DR-10 from RPUs and other sources. Additional ground sink outputs occur when the DR-10
seizes the phone line and when it hangs up. Programming is easily done from any DTMF
telephone. The DR-10 is compatible with both the Silencer and call progress decoder options. The
Silencer Option is a daughterboard that takes its audio feed from the DR-10 and removes the DTMF
tones. The DTMF-free audio is routed to the DR-10's Audio Out screw terminals.
G
ETTING
S
TARTED
Q
UICKLY
Your particular installation plans will dictate whether you want to wire or mount your DR-10 first.
Wall or Rack mount your DR-10. We've included stainless steel rack screws and nylon washers if
you purchased your DR-10 with a rackmount kit. If you decide to wall-mount your DR-10, the
distance between the mounting screws should be 10-7/16". You can mount the DR-10 in any
position, just try to keep it away from high humidity or excessive heat.
The telco coupler in the DR-10 is designed to take some abuse from phone line transients and the
like, however, if you are in a lightning prone area we recommend installing a telephone line surge
surpressor on the Telco Line jack of the DR-10. 4
C
ONNECTIONS
The DR-10 screw-terminal strip.
The screw terminal connections are fairly straight-forward. From left to right:
Normally Open contacts from relays 1-8. These contacts are rated at 10VA. If you need to switch beefy
current or voltages, you will need to slave a beefy relay to any of these closures.
Dual form "C" contacts from relays nine and ten. These contacts are somewhat tougher than those on relays
1 through 8; however, we do not recommend running AC line voltage, high current, or heavily inductive or
capacitive loads through them. Contact a qualified electrician if you need to switch houshold line voltages.
There are two sets of FORM C contacts from each of relays nine and ten. The contacts are marked NO1 ,
NO2, NC1, NC2, COM1, and COM2. These markings correspond to the two sets of contacts for each relay
normally open, normally closed, and common.
AUX TTL Output. This is a pseudo open collector output (cannot directly sink Voltages greater than 5V) that
occurs when the DR-10 answers a telephone call. It can be programmed as either momentary or latching for
the duration of the call.
LOCKED TTL Output. This is a pseudo open collector output (cannot directly sink Voltages greater than 5V)
that pulls low if the unit is LOCKED.
DISABLE. If this pin is