2 AD2081 Port Expander Installation & Operating Instructions
8000-1785-01, Rev. B1
Additional AIUs cannot be cascaded from an AIU
connected to an AD2081 Port Expander.
Cascaded
AIUs must be connected directly to an RS-232 port on
the appropriate system panel.
System Connections
The typical system connection drawing on the following
page shows four AD keyboards connected to an
AD1024 CPU through an AD2081 Port Expander. By
substituting the keyboards with four AD2010R bays
equipped with AD2010DBVL modules, the drawing will
show the Port Expander used with video loss detector
devices. If a port is required for an AD2096A AIU, the
AIU can be substituted for the keyboard connected to
Port A of the AD2081. Note: system setup parameters
should reflect the port use settings described in the
paragraphs above.
The RJ-45 pin outs for the AD2081 and the devices the
unit connects to are identical with the exception of AD
keyboards which utilize two typically open pins for AC
power connections. AC power is provided to the
keyboards via an external transformer. The table directly
below lists the pin outs for both the keyboards and
other devices.
Pin Outs for AD Keyboards
Pin Outs for AD2081 & other Devices
Pin #
Name
Pin #
Name
1
Power (AC)
1
Open
2
Ground
2
Ground
3
Open
3
Open
4
RS232 Receive
4
RS232 Receive
5
RS232 Transmit
5
RS232 Transmit
6
Open
6
Open
7
Ground
7
Ground
8
Power (AC)
8
Open
The seven foot modular cable provided with the Port
Expander “flips” the receive and transmit connections
from one end of the cable to the other. This single
exception to straight-through wiring enables a transmit
signal to connect to a receiving port. For hook-ups
where the devices are separated by more than seven
feet, the modular cables must be connected to a wall-
mount terminal block. For connections between terminal
blocks, the transmit/receive reversal must be repeated
(see accompanying system illustration).
AC Power Considerations
The AD2081 Port Expander is available in two
configurations:
AD2081
is configured for a 120 VAC, 50/60 Hz primary
power source. AD2081 units are supplied with a
transformer that connects from the two pin header on
the unit directly to the wall outlet.
AD2081-1
is configured for a 230 VAC, 50/60 Hz primary
power source. AD2081-1 units are supplied with a
transformer with a Euro-style IEC 320 type inlet. A
suitable, detachable cord should be connected between
the IEC 320 inlet and the primary power source. The
cord should conform to all national and local use code
requirements.
Neither the AD2081 nor the AD2081-1 is provided with
an on/off switch. Power is applied directly at the source
and is indicated by the illumination of the green
data
LED.
Installation Precautions
The installation of the AD2081 Port Expander should be made by
qualified service personnel only, and should conform to all national
and local codes. Appropriate safeguards must be taken to avoid
damage and/or malfunction caused by unqualified personnel, falling
objects, building vibrations, and other environmental hazards.
Warning
This equipment has been tested and found to com ply 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
frequency energy and, if not installed and used in accordance with
the instruction manual, may cause 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 their own expense. Changes or
modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
This Class A digital apparatus meets all requirements of the
Canadian Interference Causing Equipment Regulations. Cet appareil
numérique de la classe A respecte toutes les exigences du
Règlement sur le matériel brouilleur du Canada.
The exclamation point within an equilateral triangle
screened on the front panel of the AD2081 is intended to
alert the user to important operating instructions in the
literature accompanying the product.
!
Specifications
References:
RS-232
EIA 232-D
CCITT V.24
Expander Specifications:
Input:
AD2081:
9 VAC, 50/60 Hz, 300 mA
AD2081-1: 8 VAC, 50/60 Hz, 400 mA
Power Connection:
Wall Transformer
Size:
13.3 cm. W x 20.6 cm. D x 2.9 cm. H
Weight:
0.6 kg.
Paint Color:
Black
Communications:
RS-232
Selectable Baud Rate
(1200, 2400, 4800, 9600, 19,200, 38,400)
Environmental:
Operating Temp;
0º to +50ºC (32º to 122ºF)
Humidity:
5 to 95% non-condensing
Storage Temp:
-40º to 70ºC (-40º to 155ºF)
Regulatory:
FCC
CE (Model AD2081-1)
If you need assistance…
Contact Technical Support at
1-800-507-6268
(or 845-624-7640). Fax: 845-624-7685
