e-mail:
voice:
360.854.9559
fax:
866.783.1742
4
DTD-16 Plus Installation and Operation Manual
INTRODUCTION
Product Overview
The DTD-16 Plus is a full-featured DTMF tone/sequence decoder that is user pro-
grammable to decode single tones or sequences up to six tones in length and maybe
assigned to any one of eight SPST normally open relays, eight open collectors and/or
the USB serial port. The relays and open collectors may be programmed to close for
the duration of tone, pulse immediately after completion of detection, wait a pro-
grammed (up to 9.99 seconds) length of time after detection, or latch/unlatch.
Programming is performed using a non-dedicated PC’s USB port equipped with
Windows HyperTerminal and/or Putty.
Features
Decodes all 16 DTMF tones; 16 memory locations; adjustable tone detection time;
line level high Z input, which accepts a balanced or unbalanced source, surge pro-
tected power supply, front panel status for power, each relay, valid DTMF tone,
serial data activity, recessed programming push button with LED indicator and
recessed input level control with a range of -20 to +24dbu. All connections are on
removable screw terminals except for the USB Type B female port connector. The
DTD-16 Plus may be set on a desktop, mounted on a wall or up to four units
mounted on the RA-1, 1-RU mounting shelf.
Inspection
Please examine your DTD-16 Plus carefully for any damage that may have been sus-
tained during shipping. If any is noted, please notify the shipper immediately and
retain the packaging for inspection by the shipper. The package contains the DTD-16
Plus, 7.5 to 12 volt DC wall power transformer, four plastic and/or velcro feet,
USB-A/B cable and this manual on the web site or CD.
Installation
Installation of the DTD-16 Plus in high RF environments should be performed with
care. Shielded cable is suggested for all audio connections. All shields should be
tied to the “GND” Ground terminal. The station ground should be connected to the
CGND terminal.
Surge Protection/RF Filtering
It is recommended that all cables connected to the DTD-16 Plus be looped through
ferrite cores to suppress RF. Surge protection with RF filtering such as the Tripp-Lite
“ISOBAR 4 or 6” is also suggested for the wall transformer.
Input Connection
Hi Z, active balanced. Connect your equipment to the AUD- and AUD+ removable
screw terminals. If the user is feeding the unit with an unbalanced output, attach the
positive output to the + input and a jumper between the "-" input and GND
Input level
The front panel “INPUT LVL” control may be used to adjust the DTMF tone detection
from –20dBu to +24dBu. This control should be adjusted for a solid DV led indication.
WEBSITE:
Visit our web site for
product updates and
additional information.
