AD1476
CONNECTIONS
Figure 3 - AD 1476 Rear Panel
CONNECTIONS
All connections are made on the rear panel of the AD1476, shown in
Figure 3 above. Typical connections of the AD 1476 are shown in the
Appendix.
Video Cabling
Use a good grade of 75-ohm coaxial cable such as Belden 8241 or
equivalent with BNC connectors for all video signals.
VCR Input
One BNC connector, labeled VCR IN / EXPAND, is provided for
VCR playback functions. Connect a video cable from the VCR video
output to the BNC connector EXPAND.
Alarm Inputs
The ALARMS connector pins (Alarm pins 1 - 8), located on the rear
panel, are used for the input of alarm signals from user-supplied alarm
devices. Alarm inputs to the ALARMS connector call the
corresponding Video Input to the CALL Monitor output. Alarm inputs
can be set as either closures or opens to ground, through the ALARMS
setup programming, page 11.
Alarm closures to ground must have a resistance of 500 ohms or less;
alarm opens a resistance of 100,000 ohms or more. Twisted pair may
be used for wiring from the alarm devices.
Connect alarm contacts to the ALARMS input pins corresponding to
the camera numbers connected to Video Inputs. The alarm contact
returns should all return to the ground pin (pin 9) of the Alarm
Connector.
Alarm Output Relay
Three rear panel terminals, next to the ALARMS pins, provide access
to Form C relay contacts which are activated during alarms. The
terminal contacts provided are: normally open, normally closed, and
common.
Connect these relay contacts for control of a VCR or other devices.
Contact rating of this relay is: 0.6 Amps @ 120 VAC or 2.0 Amps @
30 VAC.
RS-232
The SuperQuad HR may be controlled via RS-232 connection from a
keyboard, terminal, or computer. Refer to page 13 for control of the
SuperQuad via this connection.
RS-232 connections are made to the RS-232, 8-pin modular phone
jack on the rear panel. Pinouts are shown below.
Pin
Function
Pin Function
1
NC
5
RCD
2
GND
6
NC
3
NC
7
GND
4
XMIT
8
NC
NC = No Connection
As viewed from the rear of the SuperQuad, pin 1 is the rightmost
phone jack connector pin.
The SuperQuad is configured as RS-232 DTE equipment. The
communication parameters for the SuperQuad are: 8-bit data word, no
parity, 1 stop bit, and 1200 Baud. The SuperQuad does not transmit
any information back to the controlling machine, thus only a two-wire
serial connection is required. Connect the transmit wire of the RS-232
source to pin 5, RCD, of the SuperQuad modular jack. Connect the
ground of the RS-232 source to pin 2, GND, of the SuperQuad
modular jack.
Using 18 AWG, shielded, computer-grade cable, direct connections
can be made over distances of 1000 feet (330 m) or less. Beyond that
distance, links using asynchronous line drivers, short-haul modems, or
dial-up modems must be used.
For connecting an AD1475RT keyboard to the SuperQuad, the
keyboard is supplied with appropriate cables for plug-in to this
modular phone jack. Refer to the AD1475RT Installation Manual for
further information on keyboard connections. A typical connection of
the 1475RT is shown in the Appendix.
Power
The operating voltage is shown on the rear panel. Connect the
appended 3-wire cord to the required power source.
• AD1476 models require 120V, 60 Hz
• AD1476X models require 230V, 50 Hz
• 120V, 50 Hz and 230V, 60 Hz combinations are available
