RDL RU2-CS1 Data Sheet

ACCESSORIES

Model RU2-CS1
Serial Controlled Interface

ANYWHERE YOU NEED...

• RS-232 Control of RDL Modules

• Serial Control of OEM Products

• Control of Eight VCA Modules

• Eight Open-Collector Outputs

• Status Inputs from Eight Sources

•

A Free-Standing or Rack-Mounted Interface

You Need The RU2-CS1!

The RU2-CS1 is a chassis based interface that can be used free-standing or rack-mounted with other RACK-UP products from
Radio Design Labs. For rack-mounted installations, the RU2-CS1 uses two RACK-UP mounting bays in an RDL RU-RA3 rack
mount frame.

APPLICATION: The RU2-CS1 controls 8 OPEN-COLLECTOR outputs. It also provides 8 separate ZERO TO 10 VOLT
OUTPUTS to control external VCAs or other equipment with 0 to 10 VDC control inputs. Eight STATUS INPUTS are provided for

sensing external switch or transistor closures.
The RU2-CS1 connects to a computer through an RS-232 serial link. Commands may be initiated from a terminal program or from

user software that sends and receives commands detailed in the instruction manual.

OUTPUT TERMINAL COMMANDS – A command will either activate or deactivate each of the eight
open-collector outputs. A separate command simultaneously activates or deactivates all outputs. A pulse command will
provide a 100 mS pulse at a designated output. Each output is pulled to ground when it is active.

0 TO 10 VOLT OUTPUT COMMANDS – The ramp rate for each output can be preset individually or globally. Output
commands then initiate a ramp from the present level to a newly defined level. The output level (one or all) may also be sent
directly to a new level without ramping. A separate command will set the RU2-CS1 to report the completion of ramping. If any
0 to 10 VDC output is used to control other equipment that uses 0 to 5 VDC control, the corresponding RU2-CS1 output may
be set to output 0 to 5 VDC without any loss of resolution.

STATUS INPUT TERMINAL COMMANDS – The RU2-CS1 may be set to provide an alert any time an individual status input
terminal changes state (low to high, high to low). Global commands allow enabling or disabling alerts from all status inputs.
The controlling computer can also query the status of an individual terminal or all status terminals. A separate command
allows the program to provide an alert when a defined pattern of all eight status terminals occurs.

The RU2-CS1 may be operated without any response codes fed back to the computer. An initialization command sets all
parameters to known values at the beginning of the user program. Error codes may be enabled to assist in development of
controlling software. A pair of RDL RU-SC2 modules may be used to locate the controlling computer at a location remote from the
RU2-CS1.

Front panel LEDs show any active audio outputs, active status inputs, transmit and receive data, errors and power. The RU2-CS1
operates from 24 VDC which may be connected either through the DC power jack or terminal block.

RDL • 659 N. 6th St. • Prescott, AZ., USA 86301 • [phone] • FAX [phone] • www.rdlnet.com

RACK-UP® Series

Model RU2-CS1
Serial Controlled Interface

Installation/Operation

EN55103-1 E1-E5; EN55103-2 E1-E4

Typical Performance reflects product at publication time
exclusive of EMC data, if any, supplied with product.
Specifications are subject to change without notice.

"ERROR" LED FLASHES IF THE LAST
COMMAND RECEIVED WAS NOT VALID.
THE BLINKING PATTERN INDICATES
THE ERROR NUMBER.

"GOOD" LED IS ILLUMINATED IF THE
LAST COMMAND RECEIVED WAS
VALID.

POWER

SOURCE

OR

24 VDC

CONNECT TO COMPUTER USING
A MALE - FEMALE 9 PIN
STRAIGHT-THRU SERIAL CABLE

ERROR 1 FRAMING ERROR (INCORRECT BAUD RATE)
ERROR 2 RS-232 BUFFER OVERRUN
ERROR 3 INTERNAL DATA BUFFER FULL (MISSING CR AND/OR LF)
ERROR 4 COMMAND NOT UNDERSTOOD (SYNTAX ERROR)
ERROR 5 ARGUMENT BAD (PREFIX UNDERSTOOD BUT PARAMETER SUFFIX INCORRECT)

CONTROL OUTPUTS

1

GOOD POWERERROR 8765432

RS-232 PINS
NOT USED
BY RU2-CS1
AVAILABLE
FOR
CUSTOMER
USE

MADE IN USA

STATUS INPUT
CONNECTIONS

OPEN COLLECTOR

2345678

OUTPUT LED
ILLUMINATES IF THE
CORRESPONDING OPEN
COLLECTOR OUTPUT IS
ACTIVE (PULLED LOW)

SET BAUD
RATE
SWITCHES
AS SHOWN

1

STATUS LED
ILLUMINATES IF THE
INPUT IS ACTIVE (PULLED
LOW)

OR

MECHANICAL SWITCH

OR

5V LOGIC DRIVER

ZERO TO 10 VOLT OUTPUT "A"
SHOWN CONTROLLING AN
RDL ST-VCA2

STATUS INPUTS

RS-232

RX TX

LED INDICATES
RECEIVE OR
TRANSMIT DATA
ON RS-232 CABLE

OPEN COLLECTOR OUTPUT 1
SHOWN CONTROLLING AN
RDL ST-LCR1H

LED INDICATES
POWER IS
APPLIED TO THE
POWER INPUT
JACK

HIGH POWER RELAY

ACTUATE

S
L

PWR

24

5

A
V

V

V

E

MOMENTARY ACTUATION

SHOWN DE-ENERGISED

TYPICAL PERFORMANCE

Control Input / Output: RS-232 (DB-9 female jack)
Control Outputs (8): Open-collector, 50 mA
Status Inputs (8): Low = active
(internally pulled high to 5 VDC); MAX input 24 VDC
0 to 10 VDC Outputs (8): 22 Ω ground-referenced, 20 mA, 256 steps
Ramp Rate for 0 to 10 V Outputs: 0.5 to 120 seconds
(for 10 V change), individually programmable
Power Requirement: 24 to 33 Vdc @ 200 mA, Ground-referenced

Radio Design Labs Technical Support Centers

U.S.A. [phone], [phone]; Fax: [phone]

891-9235A

Europe [NH Amsterdam] (++31) 20-6238 983; Fax: (++31) 20-6225-287

NOTE: This equipment has been tested and found to
comply with the limits for a Class B digital device, pursuant
to part 15 of the FCC Rule. These limits ar e designed to
provide reasonable protection against harmful interfer enc e
in a residential installation. The equipment generates,
uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions,
may cause harmful interference to radio communications .
However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does
cause harmful interference to radio or televis ion reception,
which can be determined by turning the equipment off an
on, the user is encouraged to try to correct the
interference by one or more of the following measures:

• Reorient or relocate the receiving antenna

• Increase the separation between the equipment

and receiver

• Connect the equipment into an outlet on a circuit
different from that which the receiver is
connected.

• Consult the dealer or an experienced radio/TV

technician for help.