ICS ELECTRONICS 4803DVR User manual

7034 Commerce Circle
Pleasanton, CA 94588
Phone:
925.416.1000
Fax:
925.416.0105
Web:
www.icselect.com
Description
Description
4803DVR
RELAY DRIVER
BOARD FOR
ICS'
S
40-LINE
INTERFACE
BOARDS
■
Provides up to 40 outputs
for driving external relays or
other heavy loads.
Eliminates the need for exter-
nal drivers and logic circuits.
■
Confi gurable as 24, 32 or 40
relay driver outputs.
Unused driver lines are
available as TTL I/O lines to
sense inputs, switch closures
or to output data.
■
Mates with ICS's 2003, 2303,
4803 and 8003 Parallel Inter-
face boards.
Drive relays and digital sig-
nals from the GPIB bus, from
a Serial source, via USB or
over an Ethernet network.
■
Provides 5 volts to power the
Interface Board.
Eliminates the need for a
separate 5 volt power supply.
■
All I/O lines have screw
terminals.
Easy signal connection.
RoHS Compliant
ACCESSORY BOARDS
Compact Assembly
The standard 4803DVR Board is designed so
that ICS's small Parallel Interface Cards with their
digital connector on the circuit side can mount
on the 4803DVR board as shown below. ICS
Models 2003, 2303, 4803 and 8003 can all be
ordered with the digital connector facing down.
This makes a compact assembly that is only 4.5
inches wide by 7 inches long by 1.25 inches high
as shown in Figure 2.
A version of the 4803DVR Board is available
with a female connector on its circuit side so it
can sit on top of standard 2003, 2303, 4803 and
8003H boards. Mounting the 4803DVR Board
on top of standard boards adds 0.6 inches to the
overall assembly height as shown in Figure 3.
4803DVR Relay Driver Board
with a 4803 Interface Board
Adding relay drivers to an ICS 2003, 2303, 4803 or 8003 Interface Board
The 4803DVR Board expands the output
drive capability of ICS's 40-line Parallel In-
terface Boards by adding heavy-duty solenoid
drivers to each output signal. The 4803DVR is
designed so that the user can confi gure 24, 32 or
all 40 digital lines with solenoid drivers to operate
relays and other heavy loads. When just 32 or
24 lines are used for relay drivers, the remain-
ing eight or sixteen lines can be used as TTL I/O
lines. The 4803DVR Board also converts the relay
power supply voltage into 5 Vdc for powering its
companion Interface Board, eliminating the need
for a separate 5 volt power supply. The 4803DVR
board works with ICS Model 2003, 2303, 4803
and 8003 Parallel Interface Cards.
High Current Relay Drivers
The 4803DVR Board is equipped with 40
open-collector darlington type drivers that can
sink up to 300 mA to operate relays, solenoids or
other heavy loads. The rugged relay drivers can
handle voltages up to 48 volts. The 4803DVR's
driver circuits have been designed to be glitch
free so as to not pulse the external relays at power
turn-on or turn-off. The output drivers can be
operated by bit commands that toggle one bit at
a time, by byte-wide commands that control 8
bits at a time or by string commands which can
control multiple bytes at a time.
GPIB
2003, 2303, 4803 or 8003
Digital Interface
4803DVR
Relay Driver Board
Relay Control
Lines
USB
or
Serial

Input Lines
The 4803DVR Board can be confi gured so that
all 40 lines are relay driver outputs or the fi rst 8 or
16 digital I/O lines can be connected directly to
the Interface board and used as standard TTL I/O
lines. Rocker switches and jumpers on the 4803DRV
Board bypass the relay drivers on bytes 1 and 2 and
connect the terminal strip signals directly to the
interface board.
The confi guration choices are:
TTL I/O Relay Driver Outputs
0 40
8 32
16 24
The 4803DVR Board terminal strip connections
are identifi ed by bytes and bit, so they easily relate
to the signals on the companion Interface Board.
Standard bit commands like ROUTe:CLOSe or
ROUTe:OPEN can then be used to operate the relay
drivers. Output polarity is set high true for the relay
driver signals.
An External Reset input can be used to reset the
Interface board
Built-in Power Supply
The 4803DVR obtains power from the same power
supply that drives the external relays. The relay
power is used as the return for the drivers' internal
anti-backlash diodes and to power the companion
Interface Board. The user should still use relays with
built-in anti-backlash diodes to minimize RFI. The
4803DVR contains a small switching regulator that
converts 4 VA of relay power into 5 Vdc to power
the companion digital board,. This eliminates the
need for a separate 5 volt power supply.
4803DVR Board Assembly
Figure 2 shows how a 2003, 2303, 4803 or 8003
Interface Board with a circuit-side connector mounts
on the 4803DVR Board. The board is positioned over
J1 on the 4803DVR Board and pressed into place.
A pair of 0.688 high female-to-male standoffs holds
the front portion of the two boards together. The
rear portion is held by the mating force of the two
64 pin DIN connectors. Signal and power wires are
attached to the terminal blocks.
Standard Interface Boards with their digital
connectors on the component side can be used with
the 115522 version 4803DVR Board. The 115522
DVR Board has its digital connector mounted on
its circuit side (bottom) of the PC board so it sits on
the Interface Board as shown in Figure 3. A pair of
0.688 high standoffs holds the two boards together.
Standard 8003s with their vertical RJ-45 connector
cannot be used with the 115522 4803DVR
Board because the board blocks the RJ45
connector.
Digital
signals identifi ed
by byte and by bit
R e l a y
p o w e r
input
Switches connect terminals to board input lines
5 volt power supply
Mating connector for
the interface board.
Figure 3 115522 Relay Driver Board on top of a
standard Interface Board
115490 4803DVR Board
Relay
Power
Supply
+
-
V+
V Return
4803DVR Board
External Relay Connections
Output
Diode
Relay
Coil
+
-
Off
On
Byte 3, Bit 0
Byte 1, Bit 0
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Figure 1 Partial 4803DVR Board Schematic
Figure 2 115490 4803DVR Board and an Interface Board
with a circuit-side DIN connector.
1.237
Screw Terminals
Interface Board with Digital Connector on the circuit-side
4803DVR Board
Standard Interface Board with component side connector
1.825
Screw Terminals
4803 GPIB Headers
4803DVR Board
4803DVR: Description

Parallel
Interface
Standard 4803DVR supplies a male DIN
connector for mounting a 2003, 2303, 4803
or 8003 Interface Board with its Digital I/O
connector on the circuit side. Power supplied
by a switching power supply on the 4803DVR
board.
Supplied Power:
Voltage +5 ± 0.2 Vdc
Current 500 mA max
Companion Interface Boards
The Standard 4803DVR board supports the
following ICS small Interface Boards:
Part Number Model
116038 2003
114732 2303
114648 4803
115848 8003
4803DVR Connections
The following companion Interface Board
lines are used by the 4803DVR Board:
40 Digital I/O lines
Stable Signal
External Reset Input
Other Interface Board Signals
The following companion Interface board
signals are brought to pads on the 4803DVR
Board and are available to the user:
LED drive signals:
PWR, RDY, TALK, LSTN, SRQ
and ERR
EDR and Inhibit pairs #1 and #2
Status A and Status B inputs
Trigger, Remote and Reset outputs
Data Strobe
4803DVR: Specifi cations
Driver Characteristics
High power outputs for driving relays or
other loads. Relay driver outputs controlled by
SOURce or ROUTe commands with polarity
set to high true. Number of lines is 40 less the
number of lines that by-pass the relay drivers
and connect directly to ports 1 and 2 on the
digital board.
Number 24, 32 or 40 Lines
Driver Form Open collector with
anti-backlash diode.
Current up to 300 mA
Vout low 1.3 volts at 300 mA
V max 32 Vdc
TTL Signal Characteristics
TTL signals have the same characteristics as
the companion Interface Board's digital signals.
Inputs typically have 33 Kohm pullups for
sensing CMOS signals and contact closures.
Outputs sink up to 48 mA. Signals controllable
by Interface Board commands or are monitored
by the Questionable Register.
Number 16, 8 or none
As inputs:
High > 2.4 Vdc or open
Low < 0.5 Vdc at 200 µA
Pullup resistor 33 kohms to +5 Vdc
As outputs
High = >3 V with 3 mA source
High =>2 V with 24 mA source
Low = 0.0 to +0.55 Vdc, 48 mA sink
External Reset Input
TTL input signal that resets the Interface
Board when pulled to ground. Pullup pro-
vided by a resistor on the companion Interface
Board.
Physical
Size, L x W x H
177.8 x 114.3 x 14.3 mm
(7.0x 4.5 x 0.562 inches)
Assembled dimensions
115490 177.8 x 114.3 x 32.3 mm
7.0x 4.5 x 1.265 inches)
115522 177.8 x 114.3 x 46.36 mm
(7.0x 4.5 x 1.825 inches)
Connectors and Headers
Digital 96-pin, 3 row male DIN
connector using rows A & C.
Relays Screw terminals for
#16 - #30 AWG wire.
Temperature
Operation -10° C to +70° C
Storage -20° C to +85° C
Humidity
0-90% RH without condensation
Power
+7 to + 32 Vdc @ 4 VA (typical)
Included Accessories
Instruction Manual
2 Standoffs and locknuts
Available Accessories
None
ORDERING INFORMATION
Part Number
4803DVR Board for 2003, 2303, 4803 and 8003 boards with circuit-side connectors. Includes Instruction Sheet. 115490
4803DVR Board for standard 2003, 2303, 4803 and 8003H boards Includes Instruction Sheet. 115522
Copyright 2014 ICS Electronics - Specifi cations subject to change without notice.
04/14