Broadcast Tools SRC-16 Plus User manual

Installation and Operation Manual
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Due to the dynamic nature of product design, the information contained in this
document is subject to change without notice. Broadcast Tools, Inc., assumes no
responsibility for errors and/or omissions contained in this document. Revisions
of this information or new editions may be issued to incorporate such changes.
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Copyright® 1989 - 2013 by Broadcast Tools, Inc. All rights reserved.
No part of this document may be reproduced or distributed without permission.
Visit www.broadcasttools.com for important product update information.
Manual update: 12/11/2013
Firmware Version 1.17 and above. If you need a firmware upgrade, contact Broadcast Tools®
No part of this document may be reproduced or distributed without permission.
ALL SPECIFICATIONS AND FEATURES FOR THIS PRODUCT ARE SUBJECT TO
CHANGE WITHOUT NOTICE
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SRC-16 Plus
Sixteen channel serial remote control
INC
®

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SRC-16 Plus Installation and Operation Manual
Table of Contents
Section Title Page #
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Who to Contact for Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Features/Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Surge Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
UPS standby power system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Front Panel Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Configuration Dip-switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Rear Panel Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Status/Logic Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Relay Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Expansion Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Serial Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Setup/Operation
Configuration Dip-switch Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Operation Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
ASCII Burst Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Binary Hex Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Front and Rear PanelLabels . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix
Connector, configuration jumpers and dip-switch layout . . . Appendix
Fractional schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix
WEBSITE:
Visit our web site for
product updates and
additional information.
2
CONTENTS

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SRC-16 Plus Installation and Operation Manual
INTRODUCTION
INTRODUCTION
Thank you for your purchase of a BROADCAST TOOLS® SRC-16 PLUS
sixteen channel serial remote control (referred to as the SRC-16 PLUS throughout
this manual). We’re confident that this product will give you many years of depend-
able service. This manual is intended to give you all the information needed to install
and operate the BROADCAST TOOLS® SRC-16 PLUS.
SAFETY INFORMATION
Only qualified technical personnel should install the SRC-16 PLUS. Any
attempt to install this device by a person who is not technically qualified could result
in a hazardous condition to the installer or other personnel or damage to the SRC-16
PLUS or other equipment. Please ensure that proper safety precautions have been
taken before installing this device. If you are unfamiliar with this type of equipment,
please contact a properly qualified engineer to handle the installation and setup of
the SRC-16 PLUS. Broadcast Tools, Inc., is unable to support NON-Broadcast
Tools software, hardware or NON-Broadcast Tools computer/hardware/software
problems. If you experience these problems, please research your hardware/software
instruction manuals or contact the manufacturers technical support department.
WHO TO CONTACT FOR HELP
If you have any questions regarding your product or you need assistance, please con-
tact your distributor from whom you purchased this equipment. If you would like
more information about BROADCAST TOOLS® products, you may reach us at:
Broadcast Tools, Inc.
131 State Street
Sedro-Woolley, WA 98284-1503 USA
Voice: 360.854.9559
Fax: [phone]
Internet Home Page: www.broadcasttools.com
E-mail:[email protected]
THANK YOU FOR CHOOSING
BROADCAST TOOLS® BRAND PRODUCTS!
CAUTION!
Broadcast Tools®
Products, as with any
electronic device, can
fail without warning.
Do not use this product
in applications where a
life threatening condition
could result due to failure.
NOTE:
This manual should be
read thoroughly before
installation and operation.
WEBSITE:
Visit our web site for
product updates and
additional information.
Broadcast Tools is a Veteran Owned Business
Designed, Assembled and Supported in WA State, USA

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SRC-16 Plus Installation and Operation Manual
OVERVIEW
Product Overview
The Broadcast Tools® SRC-16 Plus is a computer interface to the real world.
Connected through an RS-232 or RS-422/485 serial port the SRC-16 Plus can noti-
fy your PC software program that any of 16 optically isolated inputs have been
opened or closed and allow your software to control any of the 16 SPDT, 1-amp
relays. Communication with the SRC-16 Plus can be accomplished via short “burst”
type ASCII or binary commands from your PC (computer mode.) Alternatively, the
SRC-16 Plus may be used in Data mode which allows the user to define custom
ACSII strings to control the relays as well as send custom ASCII strings when an
input is on. Two units may be operated in a standalone pair mode to form a "Relay
extension cord," with 16 channels of control in each direction. The unit can com-
municate using RS-232, RS-422 or RS-485 at data rates up to 38,400 baud. The
SRC-16 Plus may be expanded to 64 inputs x 64 outputs from a single serial port.
Optional external Ethernet and USB capabilities may be used.
Features/Benefits
• RS-232 serial interface for connection to PC.
• Backwards compatible with the SRC-16.
• LED indicators for all inputs and relays.
• Status and relay connections are on removable euro-block screw terminal con-
nectors to simplify wiring and service, mating plugs are supplied.
• Fully RFI proofed.
• Surge protected internal power supply, universal switching power adapter with
domestic connectors supplied.
• Up to two SRC-16 Plus’s may be rack mounted on one RA-1, 1-RU rack shelf.
Applications
• One end of a full-duplex sixteen channel serial-enabled I/O extension cord.
• Relay control and status monitoring via user supplied PC application.

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SRC-16 Plus Installation and Operation Manual
INSPECTION
Inspection
Please examine your SRC-16 Plus carefully for any damage that may have been sus-
tained during shipping. If any damage is present, please notify the shipper immediate-
ly and retain the packaging for inspection by the shipper. The package should contain
the SRC-16 Plus, a one foot RED straight-through CAT 5 (daisy-chain) cable, one 7-
foot DB-9 straight-through serial cable and a 9 VDC @ 670 ma wall transformer.
Installation of the SRC-16 Plus in high RF environments should be performed with
care. Shielded cable is suggested for all I/O connections. All shields and the station
ground should be connected to the “Chs Gnd” terminal. It is recommended that all
cables connected to the SRC-16 Plus be looped through ferrite cores to suppress RF.
Surge Protection
The SRC-16 Plus has built-in resistance to voltage changes; we recommend that you
use a power surge protector or line conditioner on the incoming AC line. Lightning
strikes and/or other high voltage surges may damage your SRC-16 Plus and con-
nected equipment if it is not properly protected. For lightning protection devices,
check out www.polyphaser.com and www.itwlinx.com.
UPS Standby Power System
We recommend that you connect your SRC-16 Plus to a UPS system. A UPS helps
minimize the risk to the SRC-16 Plus and provides power during a power outage.
Front Panel Description
LED indicators
• “PWR” LED: Lit to indicate normal operation. (Green)
• “TX” LED: Lit when serial data is sent.
• “RX” LED: Lit when serial data is received.
• Bottom red led, not used.
• “Inputs” LEDs 1-16: Lit when the associated status/logic input is active.
(Yellow)
• “Outputs” LEDs 1-16: Lit when the associated relay output is active. (Green)
Options dip-switch
This eight-position dip-switch is used to configure the SRC-16 Plus. See the
“Configuration dip-switch Setup” section of this manual for more information.
WEBSITE:
Visit our web site for
product updates and
additional information.

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SRC-16 Plus Installation and Operation Manual
INSPECTION
Rear Panel Description
Power
2.1mm coaxial DC power jack, 7.5 - 12 VDC, center positive.
Chassis Ground (Chs Gnd)
Station ground and cable drain wires should be tied to this chassis ground point.
Status/Logic Inputs
The SRC-16 Plus has sixteen opto-isolated status/logic inputs. Each input is config-
ured at the factory to accept a dry contact closure; we call this the DRY configura-
tion. To use one of the SRC-16 Plus’s status inputs with dry contacts wire the con-
tacts to input channels Ax and Bx (where x is the status/logic input channels num-
ber, 1 thru 16) terminals. A closure between an input’s A and B terminals will cause
the input to go HIGH (turn on.) The sixteen yellow LEDs on the front panel indicate
which inputs are active.
Each input has a four-position configuration header and two jumpers. You can refer
to the jumper layout in the appendix for a detailed view. Each jumper is labeled
(JPx, where x is the status/logic input) and the header pins 1,2,3,4 are used to con-
figure for WET or DRY operation. The factory default is DRY (Switch, relay con-
tact, open collector) with jumpers between 1 & 2 and 3 & 4. In the DRY configu-
ration, the “A” terminal is ground while the “B” terminal is the cathode of the opto-
isolator diode (pulled up to 5 volts through a 2.2K resistor).
If an output that you are interfacing with the SRC-16 Plus provides its own voltage
then you will need to configure the corresponding input for the WET (floating) con-
figuration. In the WET configuration the SRC-16 Plus’s opto-isolated inputs can be
triggered by an input voltage from 5 VDC up to 24 VDC. To change a status/logic
input to WET (floating), remove both jumpers for the input’s configuration header
(labeled JPx) and place ONE jumper over pins 2 & 3. You may then connect the pos-
itive voltage to the input’s “A” terminal (anode) and ground or minus voltage to the
input’s “B” terminal (cathode).
Status/logic input terminal block connection layout
(Top Row, TB1)
A9 B9 A10 B10 A11 B11 A12 B12 A13 B13 A14 B14 A15 B15 A16 B16
A1 B1 A2 B2 A3 B3 A4 B4 A5 B5 A6 B6 A7 B7 A8 B8
(Bottom Row, TB1)
NOTE: Please refer to the appendix for configuration examples and observe
proper polarity.

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SRC-16 Plus Installation and Operation Manual
INSPECTION
Relay Outputs:
Each of the sixteen relays is supplied with SPDT (form C) dry contacts that are
jumper selectable for either normally open (N.O) or normally closed (N.C) opera-
tion. They are set to normally open from the factory. The sixteen green output LEDs
on the front panel indicate which relays are active. External equipment to be con-
trolled should be connected to the terminals labeled K1, K1-K16,K16.
NOTE: If mechanical latching relays are required, we suggest the Broadcast Tools
LR-5 or LR-5 Plus (4PDT & SPST) mechanical latching relay.
Relay output terminal block connection layout
(Top Row, TB2 1-16)
K9 K9 K10 K10 K11 K11 K12 K12 K13 K13 K14 K14 K15 K15 K16 K16
K1 K1 K2 K2 K3 K3 K4 K4 K5 K5 K6 K6 K7 K7 K8 K8
(Bottom Row, TB2 1-16)
NOTE: Please refer to the appendix for configuration examples.
Expansion Ports
Used to connect multiple SRC-16 Pluses using the included red Cat5 patch cable.
RS-232 Serial Connection
The RS-232 serial connection is made to the male DB-9 connector on the back of
the SRC-16 Plus. The headers labeled “RS-232” “NNRR” on the SRC’s printed cir-
cuit board adjacent to the RS-232 DB-9 connector can be used to reverse the RS-232
transmit and receive pins on the DB-9. The factory setting is the “NN” position
where pin 5 = ground, pin 2 = transmit and pin 3 = receive. In the “RR” position pin
5 = ground, pin 2 = receive, pin 3 = transmit.
Note: An optional USB to RS-232 adapter cable may be required if your PC isn’t
equipped with a RS-232 COM port. The default protocol is as follows: 9600, N, 8, 1
RS-422/485 Serial Connection
In some cases it’s necessary to use RS-422/485 serial interfaces instead of RS-232.
This can be enabled via jumper settings on the SRC’s printed circuit board. RS-
422/485 serial cable connections must be made to the R-/R+ and T-/T+ connections
on the TB2 terminal blocks. Please limit cable lengths to under 4000 feet.
(Top Row, TB2 17-19)
R- R+
T- T+
(Bottom Row, TB2 17-19)
Please refer to the appendix for jumper settings and connection details.
WEBSITE:
Visit our web site for
product updates and
additional information.

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SRC-16 Plus Installation and Operation Manual
SETUP
Setup/Operation
Configuration Dip-switch Setup
The configuration dip-switch package (SW1) labelled “Options” is located on front
panel of the SRC-16 Plus.
Note: After changing any dip-switch, please repower the unit.
Set Unit ID (SW1-1, SW1-2)
SW1-1 SW1-2
OFF OFF Unit ID 0 (master/default)
OFF ON Unit ID 1
ON OFF Unit ID 2
ON ON Unit ID 3
Set Serial Baud Rate (SW1-3, SW1-4)
SW1-3 SW1-4
OFF OFF 9,600 baud (default)
OFF ON 1,200 baud
ON OFF 4,800 baud
ON ON 38,400 baud
Baud rate will be set by the DIPswitch on power up or reset. It can also be
changed using the serial port commands at other times, but if the SRC-16 is reset,
baud rate will be set according to the DIP settings.
Enable Hex Mode (SW1-5)
SW1-5
OFF Hex Mode Off (ASCII) (default)
ON Hex Mode On
Refer to the protocol also listed in this manual for ASCII and binary hex commands.
Set Operation Mode (SW1-6, SW1-6, SW1-8)
SW1-6 SW1-7 SW1-8
OFF OFF OFF Mode 0 - PC Control
OFF OFF ON Mode 1 - AT1616 Command Set
OFF ON OFF Mode 2 - *uiix
OFF ON ON Mode 3 - Invert send and poll response
bits
ON OFF OFF Mode 4 - PAIR
ON OFF ON Mode 5 - Unused
ON ON OFF Mode 6 - Data Programming Mode
ON ON ON Mode 7 - Data Mode
PC Control (Mode 0)
This is the default operation mode for the SRC-16 Plus. Use this mode if you plan
on exchanging ASCII string data with the SRC.

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SRC-16 Plus Installation and Operation Manual
SETUP
AT1616 Command Set (Mode 1)
When set, the SRC-16 emulates the legacy AT1616 command set which is used by
some PC-based automation systems. A response string is returned each time an input
changes state or relays are set. The string consists of a dash (-) followed by 8 bytes.
The first 4 bytes are ASCII hex representations of the 16 outputs with the first two
bytes being the lower outputs 8,7,6,5 followed by 4,3,2,1 then the next two bytes
representing the upper outputs 16,15,14,13, and 12,11,10,9. If outputs 1, 8, 15 & 10
were ON, these 4 bytes would appear as 8142.
The last four bytes represent the 16 inputs in ASCII hex format with four bytes:
16,15,14,13 12,11,10,9 8,7,6,5 4,3,2,1. If inputs 1,4,7,8,9,10,14,16 are all ON
then these four bytes would appear as: A3C9. In the above example, the complete
string would be -8142A3C9
To set relays ON, send a capital “P” followed by two ASCII hex bytes representing
the bits for the lower 8 relays and a capital “Q” followed by two ASCII hex bytes
representing the state of the upper 8 relays. For example, to turn ON relays 2,7,8 and
13, send PC2 and Q10. A dash (-) can be placed before the “P” and “Q” if needed in
existing software applications.
The “K” Command is used to pulse relays. The protocol is Krtt where r=relay num-
ber represented as ASCII hex 0-F, and tt is an ASCII hex value from 01-FE repre-
senting values from .01- 2.56 seconds.
*uiix Mode (Mode 2)
This mode uses the same ASCII string commands as PC Control Mode (Mode 0)
except the status inputs states are reported in the following format: *uiix where
u=unit ID (0-3), ii=input number (1-16), and x=on/off state (0-1), 0=off, 1=on.
Invert Mode (Mode 3)
This mode uses the same ASCII string commands as PC Control Mode (Mode 0)
except the ASCII send and poll input status bits are inverted. This is included for
backwards compatibility PC automation software designed to operate with older
SRC-16 firmware versions.
WEBSITE:
Visit our web site for
product updates and
additional information.

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SRC-16 Plus Installation and Operation Manual
SETUP
Pair Operation Mode (Mode 4)
The SRC-16 Plus can be used to transmit the outputs from one unit to another over
a serial connection. The logical sense of the inputs is inverted when written to the
outputs of its corresponding unit. Normally inputs are high and when closed, go to
logic 0 when in pair mode. When logic 0 is received, it will write logic 1 to the out-
put. This allows the relay outputs 01-16 to come on if its corresponding input is
closed. Multiple units can also be set up to communicate with the same number of
units on the other end of a data link. All units must have dip-switches 5 and 6 turned
ON, and the unit addresses must have a corresponding unit on the other end of the
link set to the same address. For example, if you have two units on each side set to
address 0 and 2, then the two units on the other side of the data link must also be set
to 0 and 2.
All units will automatically transmit the states of their inputs on power up, every ten
seconds and when any input changes state. If a unit does not receive an update from
its corresponding paired unit for a period of about 10 seconds, it will begin flashing
the red RX LED one second on, one second off. When communication is restored,
the LED will cease to flash.
NOTE: To daisy-chain multiple SRC-16 Plus’s, only use the supplied one foot RED
straight-through CAT 5 (daisy-chain) cable to connect multiple SRC-16 Plus’s
together. Limit to 18 inches.
Pair mode can also be used to broadcast input closures from one unit to many using
a shared data link. The inputs on the transmit SRC-16 Plus will appear on all of the
receive units as long as their address codes match. If only one unit is used at each
site, it must be set to an address of zero. The red RX LED will blink on the transmit
side to indicate it is not getting return data from the remote units. However, the data
being broadcast will still cause the remote relays to follow their corresponding
inputs on the broadcasting unit.
Note: If jumpers JP23 and 24 are ON and the SRC-16 Plus is in pair mode, it will
control its own relays, essentially being a pair with itself. This is an easy way to test
the inputs and outputs of a single unit. Normally JP23 and 24 should BE
REMOVED, or you may have unintended consequences of a unit’s relays respond-
ing to input closures generated from the same board.
Mode 5
Not used.

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SRC-16 Plus Installation and Operation Manual
SETUP
Data Programming Mode (Mode 6)
Programming Input Strings
In Data Programming mode: enter “*I” and a list of the 16 inputs will be displayed
with the data programmed to be sent when each input closes. Select the input string
you wish to modify, 01-16.
Example: Enter 01. A “-“ will appear followed by a new line. Enter the data string
you want to be sent by input 01, up to 64 characters. For example, enter “123” and
terminate the data entry with a carriage return. In the data operation mode when
input 01 is closed, “123” followed by a CR/LF will be sent. To exit program mode,
enter the Esc key or wait one minute for the program time-out.
DATA SENT BY INPUTS:
01-123
02-
03-
04-
05-
06-
07-
08-
09-
10-
11-
12-
13-
14-
15-
16-
ENTER 01-16 FOLLOWED BY DATA STRING UP TO 64 BYTES, END WITH CR:
Programming Relay Control Strings
In Data Programming mode: enter “*R” and a list of the 16 relay control strings will be
displayed. This is the data that will cause the corresponding relay to pulse in operational
mode. Select the relay string to modify, 01-16. For example, enter 01 a “-“ will appear
followed by a new line. Enter the data string you want to be used to pulse relay 01, up
to 64 characters. For example, enter “123” and terminate the data entry with a carriage
return. In the data operation mode when “123” is received, relay 01 will pulse for 800ms.
DATA TO ACTIVATE RELAYS:
01-123
02-
03-
04-
05-
06-
07-
08-
09-
10-
11-
12-
13-
14-
15-
16-
ENTER 01-16 FOLLOWED BY DATA STRING UP TO 64 BYTES, END WITH CR:
WEBSITE:
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product updates and
additional information.

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SRC-16 Plus Installation and Operation Manual
SETUP
Data Operation Mode (Mode 7)
This mode allows the SRC-16 Plus to be used with a wide variety of serial devices
by allowing the user to define custom relay control strings and custom input strings.
These strings are set in the Data Programming Mode and are used in the Data
Operation Mode.
When you have finished programming data strings, exit program mode and set DIP
6,7,8 ON. The data programmed for the various inputs will now be transmitted when
the corresponding input is closed. Relays will pulse when received data packet
matches the data programmed for that relay.
When the “?” is received it be treated as a wildcard and will match whatever is in
stored memory.
If a “#” character is received in a data packet the an “@” will be accepted as the end
of packet character instead of a carriage return.
ASCII Burst Commands
The burst mode allows a computer or ASCII terminal to control and interrogate the
unit. This section defines all burst mode commands.
Each burst mode command starts with an asterisk (*). Next is a single decimal digit
that corresponds to the unit (ID) address 0-3. Following is or more ASCII charac-
ter(s) specifying the command. A carriage return is required to terminate each com-
mand. If the command requires a response, the response will consist of an upper case
“S”, followed by the unit address number, and then the specific command response.
If acknowledgments are enabled, successful commands are responded to with
“RRR” while errors get an “EEE” response.
The syntax of each command is given below. The syntax shows the command exact-
ly as it should be sent, except that lower case characters represent values that must
be substituted by the user.
Glossary of Command Notation
Character String Meaning Allowable Values
u Unit ID 0-3
ii Input Number 01-16
oo Relay Number 01-16
Setup Commands
*uCCx - Set Serial Baud Rate. x = 0: 2,400 1: 9,600 2: 19,200 3: 38,400 4: 4,800
Command Example: *0CC3 will set the serial baud rate to 38,400
*uCEx – Enable or disable command success/error responses, where x = Y to enable
and N = disable. In this mode, when a command is sent, the unit will reply (possi-
bly before receiving the entire command) with “EEE.” If the command is sent cor-
rectly, the unit will reply with “RRR.”
Command Example: *0CEY enables command success/error responses.

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SRC-16 Plus Installation and Operation Manual
SETUP
Relay Control Commands
*uORrrL - Latch Relay, where “rr” = relay number.
Command Example: *0OR01L latches Relay 01 on.
*uORrrF - Unlatch Relay, where “rr” = relay number.
Command Example: *0OR01F latches Relay 01 off.
*uORrrP - Pulse Relay for ONE second, where “rr” = relay number.
Command Example: *0OR01P pulses Relay 01 for one second.
*uORrrPtt - Pulse Relay “rr” for Pulse Length, “tt” = 00-99 corresponds to 0.0-9.9 Seconds.
Command Example: *0OR01P99 pulses Relay 01 for 9.9 seconds.
Information Retrieval Commands
*POLL - Respond with unit (ID) address in appropriate time slot. If there are multiple units
on the line, each will respond with a different delay after receipt of this command.
Command Example: *POLL
Response Example: 0
*uSPii - Send status of input, where “ii” = input number. Response in SuP,ii,x format where
“x” is 1 if the corresponding input is high, 0 otherwise.
Command Example: *0SP01 Poll Input 01 status
Response Example: S0P,01,1 Indicates Input 01 is high.
*uSPA - Send status of all inputs. Response in SuP,A,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x
<CR><LF > format where Input 01 is first and Input 16 is last and where “x” is 1 if the cor-
responding input is high, 0 otherwise.
Command Example: *0SPA
Response Example: S0P,A,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 Indicates all inputs are
low.
*uSR - Send status of all relay outputs. Response in SuA,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x
<CR><LF> format where Relay 01 is first and Relay 16 is last and where “x” is 1 if the
relay is on and 0 otherwise.
Command Example: *0SR
Response Example: S0A,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 Indicates all relays are off.
*uU - Send Unit Information in SRC-16 VER n.nn<CR><LF> format.
Command Example: *0U
Response Example: SRC-16 VER 1.17
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SRC-16 Plus Installation and Operation Manual
SETUP
Binary Hex Commands
Binary hex mode is offered as alternative serial command set. To enable, turn SW1-5
on. All commands start with a 2Ah (ASCII *)
The first byte contains the board ID and the byte count iiibbbbb
The byte count is the number of bytes after the byte containing the byte count
including checksum. The second byte contains an 8 bit command. Some commands
are followed by data bytes. Checksum is the LSByte of the sum of all bytes preced-
ing checksum including start character. Binary hex commands must be received as
a packet. If 50ms or more passes after a character is received, with no new charac-
ter following, the SRC-16 Plus will begin looking for a new string.
Command Data Bytes Example Function
41h 2A 02 41 6D Set serial speed to 4,800
42h 2A 02 42 6E Set serial speed to 2,400
43h 2A 02 43 6F Set serial speed to 9,600
44h 2A 02 44 70 Set serial speed to 19,200
45h 2A 02 45 71 Set serial speed to 38,400
46h 2A 02 46 72 Enable error & good responses
47h 2A 02 47 73 Disable error & good responses
48h n 2A 03 48 01 76 Latch output n (00 – 0F
49h n 2A 03 49 01 77 Unlatch output n (00 – 0F)
4Bh n 2A 03 4B 01 79 Poll output n (00 – 0F) (see 55h)
4Ch n 2A 03 4C 01 7A Poll input n (00 – 0F) (see 55h)
4Dh 2A 02 4D 79 All Output status request (see 52h)
4Eh 2A 02 4E 7A All Input status request (see 53h)
4Fh 2A 02 4F 7B Unit version request (see 54h)
Response from SRC-16
Command Data Bytes Function
50h Error response if enabled by 46h
51h Good response if enabled by 46h
52h nn Response of 4Dh, outputs are sent as 2 bytes
53h nn Response of 4Eh, inputs are sent as 2 bytes, also sent
when any input changes state.
54h nn Response to 4Fh, outputs version number.
55h n Response to 4Bh or 4Ch for polled output or input
where the three highest bits of n are used to identify if
an input/output is low/high and the lowest 4 bits iden-
tify the input or output. n = 00h – 0Fh if input n is
low, n = 20h – 2Fh if input n is high, n = 40h – 4Fh if
output n is low and n = 60 – 6F if output n is high.
n=cccxnnnn where ccc = 000 = input low, 001 = input
hi, 010 = output lo, 011 = output hi. nnnnn lowest 5
bits used to identify the input or output
To poll the status of outputs of unit 2 when outputs (0-
F) 0, 6 are high, all else low:

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SRC-16 Plus Installation and Operation Manual
SETUP
Command string to SRC-16 Plus:
00101010b 2Ah Start byte
01000010b 42h Board ID 2 (010b), Byte count 2 (00010b)
01001101b 4Dh All Output Status Request
10111001b B9h Check sum (2Ah+42h+4Dh=B9h)
Response string from SRC-16 Plus
00101010b 2Ah Start byte
01000100b 44h Board ID 2 (010b), Byte count 4 (00100b)
01010010b 52h Response code for an All Output Status Request
00000000b 00h Outputs 7-F are all low
01000001b 41h Outputs 6 and 0 are high
00000001b 01h Check sum (2Ah+44h+52h+00h+41h=01h)

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SRC-16 Plus Installation and Operation Manual
SPECIFICATIONS
SPECIFICATIONS
Digital Inputs: 16 - Selectable 5 to 24 vdc optically Isolated inputs
(Jumper selectable. Factory default = Dry). 50 ms
minimum duration.
Note: Higher voltages with external current limit-
ing resistor.
Relay Outputs: 16 - SPDT, 1 amp/30 VDC relays. Jumper selectable
either N.O or N.C Factory default = N.O.
RS-232 Serial Port: 4,800, 9,600, 19,200 or 38,400 baud, 8 data bits, no
parity, 1 stop bit.
RS-422 Serial Port: 4,800, 9,600, 19,200 or 38,400 baud, 8 data bits, no
parity, 1 stop bit.
Display: LED’s for inputs, relays, Tx & Rx serial data and
power.
Interfacing: Inputs – Plug-in euroblock screw terminals.
Relays - Plug-in euroblock screw terminals.
RS-232 Serial Port - Female DB-9. Data flow pro-
grammable.
RS-422/485 Serial port - Plug-in euroblock screw ter-
minals.
Expansion port - Two, RJ45 connectors.
Logic: Flash microprocessor / Non-volatile memory.
Power: 9 VDC @ 670ma, surge protected universal input wall
transformer supplied. 2.1mm center positive coaxial
jack. International AC power plug adapters optional.
Mechanical: 8.50" x 7.125” x 1.00", aluminum chassis and steel
front panel.
Weight: 4 lbs.
Mounting Option: Optional RA-1 rack shelf for mounting up to two units
in 1-RU. Filler panels included.
Ethernet Option: Optional external Ethernet Device Server.
USB Option: Optional external Smart USB to Serial adapter.
Broadcast Tools® Smart USB to RS232 cable.
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17
SRC-16 Plus Installation and Operation Manual
LIMITED WARRANTY
LIMITED WARRANTY
The term “Buyer” as used in this document refers to and includes both (but only) (a) any person or entity who acquires such an item for
the purpose of resale to others (i.e., a dealer or distributor of an item), and (b) the first person or entity who acquires such an item for
such person’s or entity’s own use.
Broadcast Tools warrants to each Buyer of any item manufactured by Broadcast Tools that the item will be free from defects in materi-
als and workmanship at the time it is shipped by Broadcast Tools if the item is properly installed, used and maintained.
EXCLUSIVE REMEDIES
If Broadcast Tools is notified, in writing, of a failure of any item manufactured by Broadcast Tools to conform to the foregoing Limited
Warranty within one (1) year following the date of the Buyer’s acquisition of the item, and if the item is returned to Broadcast Tools in
accordance with Broadcast Tools’ instructions for confirmation by inspection of the defect (which at Broadcast Tools’ election may
include, without limitation, a requirement that the Buyer first obtain a Return Authorization number from Broadcast Tools, that the Buyer
furnish proof of purchase in the form of an invoice and/or receipt, and that the Buyer prepay all freight charges associated with any return
of the item to Broadcast Tools using such freight service as Broadcast Tools reasonably may specify), Broadcast Tools will repair or
replace the defective item, or will refund the purchase price paid by the Buyer for the item. Broadcast Tools shall have the exclusive
right to choose between these alternative remedies.
NO OTHER WARRANTIES OR REMEDIES
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, BROADCAST TOOLS AND ITS SUPPLIERS DISCLAIM ALL OTHER
WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABIL-
ITY OR FITNESS FOR A PARTICULAR PURPOSE; AND THE FOREGOING ALTERNATIVE REMEDIES SHALL BE EXCLUSIVE OF
ALL OTHER REMEDIES. THIS LIMITED WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS. YOU MAY HAVE OTHER RIGHTS,
WHICH VARY FROM STATE/JURISDICTION TO STATE/JURISDICTION.
NO LIABILITY FOR CONSEQUENTIAL DAMAGES
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, NEITHER BROADCAST TOOLS NOR ANY OF ITS SUPPLIERS
SHALL HAVE ANY LIABILITY FOR ANY SPECIAL, INCIDENTAL, INDIRECT, CONSEQUENTIAL OR PUNITIVE DAMAGES WHATSO-
EVER (INCLUDING, WITHOUT LIMITATION, ANY DAMAGES FOR LOST PROFITS, BUSINESS INTERRUPTION, LOSS OF DATA OR
INFORMATION, COST OF CAPITAL, CLAIMS OF CUSTOMERS, OR ANY OTHER PECUNIARY LOSS) ARISING OUT OF THE USE
OF OR THE INABILITY TO USE ANY ITEM SUPPLIED BY BROADCAST TOOLS, EVEN IF BROADCAST TOOLS HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES HAVE ANY LIABILITY FOR ANY SPECIAL, INCIDENTAL, CONSEQUENTIAL,
EXEMPLARY OR PUNITIVE DAMAGES. THIS LIMITATION OF LIABILITY APPLIES WHETHER A CLAIM IS ONE ALLEGING
BREACH OF A CONTRACT OR WARRANTY, NEGLIGENCE OR OTHER TORT, FOR THE VIOLATION OF ANY STATUTORY DUTY,
THE FAILURE OF ANY LIMITED OR EXCLUSIVE REMEDY TO ACHIEVE ITS ESSENTIAL PURPOSE, OR ANY OTHER CLAIM OF
ANY NATURE. BECAUSE SOME STATES AND JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY
FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, THIS LIMITATION MAY NOT APPLY TO YOU.
Broadcast Tools, Inc.
131 State Street
Sedro-Woolley, WA 98284 • USA
360.854.9559 voice •866.783.1742 fax
suppor[email protected] e-mail
www.broadcasttools.com website
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18
APPENDIX

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APPENDIX

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APPENDIX