American Dynamics AD1683 User manual

Model 1683
Control Code Modem
Installation & Operating Instructions

This software/fmware furnished with this equipment is confidential to and is copyrighted by AMERICAN DYNAMICS.
It is not to
be copied or disclosed in any manner without the express written consent of AMERICAN DYNAMICS. The
software/f'mware
is furnished to the purchaser under a license for use on a single system.
Note: Information furnished by AMERICAN DYNAMICS is believed
to be accurate and reliable. However, no
responsibility is assumed by AMERICAN DYNAMICS for its
use; nor for any infringements of other rights of third
parties which may result from its
use. No license is granted by implications or otherwise under any patent or patent rights
of
AMERICAN DYNAMICS.

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If you require information during installation of this
product or if service seems necessary, contact the
American Dynamics Repair and Service Department at
[phone]. You must obtain a Return Authorization
Number and shipping instructions before returning any
product for service.
Do not attempt to service this product yourself. Opening or
removing covers may expose you to dangerous voltages or
other hazards. Refer all servicing to qualified personnel.
The installation of this product is intended for qualified service
personnel and should conform to all local codes.
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User maintenance of this unit is limited to external cleaning
and inspection. For specific recommendations refer to the
IMPORTANT SAFEGUARDS sheet packaged with this product.
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Unpack carefully. This is an electronic product and should
be handled as such. Compare the items received with the
packing list with your order.
Be sure to save:
1. The shipping cartons and insert pieces. They are the )
safest material in which to make future shipments of
the product.
2. The IMPORTANT SAFEGUARDS sheet.
3. These Installation and Operating Instructions.
This equipment has been tested and found to
comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable
protection against harmful interference when the
equipment is operated in a commercial
environment. This equipment generates, uses, and
can radiate radio frequency energy and, if not
installed and used in accordance with the
instruction manual, may cause harmful
interference to radio communications. Operation
of this equipment in a residential area is likely to
cause harmful interference in which case the user
will be required to correct the interference at his
own expense.
If necessary, the user should consult the dealer or
an experienced radio/television technician for
additional suggestions. The user may find the
following booklet prepared by the Federal
Communications Commission helpful: "How to
Identify and Resolve Radio-TV Interference
Problems." This booklet is available from the U.S.
Government Printing Office, Washington, DC
20402, Stock No. 004-000-00345-4.
The lightning flash with arrowhead
symbol, within an equilateral
triangle, is intended to alert the
user to the presence of uninsulated
"dangerous voltage" within the
product's enclosure that may be of
sufficient magnitude to constitute a
risk of electric shock to persons.
The exclamation point within an
equilateral triangle is intended to
alert the user to the presence of
important operating and maintenance
(servicing) instructions in the
literature accompanying the product.
!
!
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVERS (OR BACK) .
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION
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WWAA AARR RRNN NNIIIINN NNGG GG
To reduce the risk of fire or shock hazard, do
not expose this product to rain or moisture.
QA305C
AMERICAN
DYNAMICS

1683 CONTROL CODEMODEM
i '7
TEN8 UNITS
CONTROLLED
1683 ControlCode Modem - Front Panel
D E SC R lPTl0N
The 1683 Control Code Modem controls Receiver
Drivers at distant sites via phone line or twisted-pair
communication links when used in 1600,
1700, and
1995 switching systems. Two are required per link:
one at the switching system end of the link operating
in a transmit mode and one at the distant site
operating in a receive mode.
A switch sets the
operating mode. In the transmit mode, Control Code
from the Switcher
/ Controller is converted to PSK
signals compatiblewith a phone line or a twisted-pair
communication link. In the receive mode, the PSK
signals are converted back
to Control Code for
Receiver
/ Driers at the distant camera sites. Each
two-modem link can control up
to eight Receiver /
Drivers within a contiguous group of eight cameras.
In
1995 systemsthis group must lie entirelywithin one
of the 64-camera blocks. The modems operate at
1200 baud.
A DATNTALKswitch enables a phone link
to be used
for voice communication while Control Code
transmissionis not required.
NOTICE: 'REGARDINGTHE CONNECTION OF
TELEPHONE EQUIPMENT TO TELEPHONE LINES.
This equipment complies with Part 68 of the FCC
Rules. Provided with this equipment is a label that
contains, among other information, the FCC
RegistrationNumber and Ringer Equivalence Number
(REN) for this equipment. You must, upon request,
providethis information
to your telephonecompany.
The REN is used
to determinethe quantity of devices
you may connect
to your telephone line and still have
all
of those devices ring when your telephone is
called. In most
, but not all areas, the sum of the
RENs of all devices connected to one line should not
exceed five
(5).
To be certain of the number of
devices you may connect
to your line, as determined
by the REN, you should contact your local telephone
company
to determine the maximum REN for your
callingarea.
If your telephone equipment causes harm
to the
telephone network, the telephone company may
discontinueyour service temporarily. If possible,they
will notifyyou in advance. But if advance noticeis
not
practical, you will be notified as soon as possible.
You will be informed of your right
to file a complaint
with the FCC.
Your telephone company may make changes in its
facilities, equipment, operations or procedures that
could affect the proper functioning
of your equipment.
If they do
, you will be notified in advance to give you
an opportunity to maintain uninterrupted telephone
service. This product contains
no user serviceable
partsor assemblies.
If you experience trouble with this product, please
contact American Dynamics Serviceand Repair Dept.
at
[phone].
The telephone company may ask
that you disconnect this equipment from the network
until the problem has been corrected or until you are
surethat the equipment is not malfunctioning.
This equipment may
not be used on coin service
provided by the telephone company. Connection
to
party linesissubject to statetariffs.
1

1683 CONTROL CODE MODEM
INSTALLATION
Communication Link Connections
Mounting
The modems are supplied as free standing units.
Half-rack mount hardware is available (AD part
#2217). Mount one of the two modems in a
convenient location nearthe Switcher / Controller or a
Code Distributor (if used). Mount the other at the
distant site near the Receiver / Drivers to becontrolled
to minimize Control Code wiring. Avoid heat sources
or poorlyventilatedracks.
Control CodeConnectlons
The 1Bpin Molex CODE connector on the rear panel
is used for connection of the required Control Code
lines. See CODE CONNECTOR PINOUTS below. A
mating plug is supplied. Connections for modems at
the Switcher / Controller(TransmitMode) andthose at
the distant site (ReceiveMode) differ.
CODE CONNECTOR PINOUTS
PIN FUNCTION PIN FUNCTION
1 Rec WHI Code 7 No Connection
2 Rec BLKCode 8 No Connection
3 Rec SHLD 9 No Connection
4 RecWHICode 10 Xmit WHI Code
5 Rec BLK Code 11 Xmit BLK Code
6 Rec SHLD 12 Xmit SHLD
Modems At The Switcher I Controller: These
modems are connected to a Control Code line from
the Switcher / Controller*or a Code Distributorat pins
10, 11 and 12. CAUTION: This connection does not
terminate the Control Code line. Add a 120 ohm
terminating resistor if the modem is the last or only
unit onthe line.
'Note: In 1995 systems, the Control Code line must
originatefrom an InputBay inthe Block containingthe
cameras to becontrolled.
Modems At The DistantSite: A ControlCode line is
run from pins 1,2, 3 or pins 4, 5, 6 of these modems,
to the "Daisy Chained" Receiver I Drivers for the
cameras to be controlledat the site. This line should
not exceeda length of 5000 ft. (1500m). Thetwo sets
of pins are identical. Use of a line from each set to a
portion of the Receiver / Drivers is preferable if it
reducesthe line length. CAUTION:The lines must be
terminated with a 120 ohm resistor at the last
Receiver / Drierin each "DaisyChain".
Separateconnectors are providedon the modems for
PSK shieldedtwisted-paircommunicationlinksandfor
phonelinecommunicationlinks.
PSK Links
The PSK connector is used on both modems for a
shielded twisted-pair link. See PSK CONNECTOR
PINOUTS below. Two sets of pin connections are
provided to adjust the signal level for optimum
performance. Pin set 1,2,3 has built-in attenuation
and should be tried on both modems initially.Pin set
7,8,9 is taken directly from the modem and should be
tried on one or both modems if unsatisfactory
performanceisobtainedusingthe 1,2,3 set.
PSK CONNECTOR PINOUTS
PIN FUNCTION PIN
1 PSK WHICode 6
2 PSKBLKCode 7
3 PSKSHLD 8
4 No Connection 9
5 No Connection
FUNCTION
No Connection
PSK WHI Code Atten
PSK BLK Code Atten
PSK SHLD Code Atten
Line Connector The four-pin modular LINE
connector is to be connected to a conventionalfixed-
loss loop telephone line, to interconnect the two
modems.
Phone Line Links The four-pin modular LINE
connectorsare used on both modems for phone links.
When a phone link is used, standard telephones may
be attached to the modular PHONE connectors for
voice communication during setup or other periods
when data transmission is not required.
RS-232 Connector
The RS-232 connectoris not usedat this time.
Power
Make surethe "0" side of the power switches, located
on the left side of the front panels, are depressed
(Units are off). Then insert the plug of the appended
3-wire cord of each modem in the required power
source.
1683 modelsrequire 120V,60Hz.
1683/X modelsrequire 230V, 50Hz.
2

1683 CODE CONTROL MODEM
SETUP
All setup controls are on the front panels.
Setupsfor the modem used at the Switcher /
Controller and that used at the distant site
differ:
Modem At Switcher / Controller
XMIT/REC Switch
Set this switch to XMIT. This
placesthe Meminthetransmit mode.
START NUMBERS Switches Set the two switches,
TENS and UNITS, to the number of the lowest
number camera
to be controlled at the distant site.
For example,
if the lowest numberedcamera to be
controlled is
7, the TENS switch is set to 0 and the
UNITSswitch
to 7; if it is 52, the TENS switch isset to
5 and the UNITS switch to 2. In 1995 systems the
equivalent 64-camerablock numbers for the block
to
which the modem is connectedare used, e.g.camera
65
is 01, camera 140 isl2, etc.
RECEIVERSCONTROLLED Switch Set this switch
to one plusthe highest numberedcamera inthe set to
be controlled minus the lowest. For example, if
cameras 20 to 23 are to be controlled, the switch is
set
to 4 (1 + 23 - 20). If camera 20, 21,22 and 24 are
to be controlledand camera 23 is fixed, the switch is
set
to 5 (1 + 24 - 20). The maximumsettingis 8 since
a maximum
of eight contiguous cameras can be
controlledby one set of modems.
DATA
/ TALK Switch Set this switch to TALK
initially. This places the modem off-line. See
OPERATIONfor further information.
Power Switch This switch,on the left side of the front
panel, is marked
"0" for off and "1" for ON. Initially it
should be set
to OFF by depressingthe side of the
switch marked
"0". See OPERATION for details on
placingthe modemsinoperation.
Modem At Distant Site
XMlT
/ REC Switch Set this switch to REC. This
placesthe modem inthe receive mode.
RECEIVERS CONTROLLED Switch The setting of
this rotary switch on the modem at the distant site is
irrelevant.
OPERATION
Front PanelIndicators
Four indicator lights on the front panels of each
modem indicatestatusandoperation.
PH-Data This light, when flashing, indicates data is
being sent to the +one
or PSK link by the modem in
XMlT Mode or is being received from the link by the
modem in REC mode.
On-Line This light, when lit, indicates that the
modem's DATA/TALK switch is set
to DATA. The
modem is then on-line and ready
to transmit or
receivedata.
Code In This light indicates, at the modem in XMlT
mode,the presence of proper Control Code from the
Switcher
/ Controller.
In 1600,1650 and
1700 systems, the light glows
steadily whenever proper Control Code is present.
A
flickering light may be an indicationthat the B and W
wires of the ControlCode line havebeenreversed,
In
1995,1996, and 2150 systems, the light only glows
steadily while properControlCodescommands for the
camerasat the distant site are being receivedfrom the
Switcher
/ Controller.
Code Out
This light indicates that proper Control Code commands are
being sent from the modem to
a ReceiverEhiver when in
the REC mode. It will flash each time a proper Control
Code command
is received, converted or sent out.
Voice Communications
When a phone line link is used and connections and
setups of both modems are complete,the link may be
used for normal voice communications using phones
connected
to the modular PHONEconnectors. The
modems need not beturnedon.
START NUMBER Switches The settingof these two
rotary switches on the modem at the distant site is
irrelevant.
3

1683 CODE CONTROL MODEM
~~
Control Code Transmission
When connections and setup are complete and the
communicationlink has been establishedbetweenthe
modems (either via
a phone line or a direct shielded
twisted-pair connection) the link is ready
to transmit
Control Code. To transmit control Code perform the
followingsteps inorder:
(1) Turn on both modems by depressing the "1" side
of the power switchesonthe left of the front panels.
(2) On the modem at the Switcher / Controller (XMIT
mode), move the DATA / Talk switch to DATA. Its
On-Line indicator will light. In
1600, 1650 and 1700
systems, the Code-In indicator will glow steadily if
proper Control Code is present on the Control Code
line. In
1995, 1996 and 2150 systems, the Code-In
indicator will glow only while proper Control Code for
cameras at the distant site
is being received from the
Switcher
/ Controller.
(3) On the modem at the distant site (REC mode),
movethe DATA
/ TALK switch to DATA. It'sOn-Line
indicatorwill light. This modem will then send
a hand-
shake tone
to the modem at the Switcher / Controller
which will tum its
output tone generator on. The PH-
DATA light will now flash on both modems when
Control Code commandsfor the Receiver
/ Drivers at
the distant site are sent from the Switcher
/ Controller.
The Code-Out light on the modem at the distant site
will flicker each time a word is sent
to a Receiver /
Driverat the site.
(4) If the phone line is disconnected, or a modem is
taken off line for any reasonafter properoperationhas
been obtained, move the DATA /TALK switches on
- both unitsto TALK and repeat steps2 and 3.
LINE PHONE RS232 CODE PSK
1x)
1683 ControlCode Modem - Rear Panel
4

SPECIFICATIONS
Supply Voltage:Model 1683 - 120V, 60Hz
Model 1683X - 230V, 50Hz
Fuse: 1 Amp, 250 Volts (Phone Line)
Power: 10 Watts
Mounting: Supplied as free standing.
Can be rack mounted.
Dimensions: 1-7/8" x 10-3/8" x 8-1/8"
(48 x 262 x 203mm)
Weight: 3.3 lbs.
Housing: Metal
An American Dynamics Product
Designed and built by
Sensormatic CCTV Systems Division
One Blue Hill Plaza
Pearl River, New York, 10965
[phone]
Technical Support Center 1-800-442-2225
FAX: [phone]
8000-1745-01 OP0146E
March 1992 Printed in U.S.A.