Monroe Electronics R173 - Manual (Page 3)

3
General Description
The R-173 enables control of from 4 to 12, Model 3185E DTMF decoder cards. It also
contains the Model 3137B, Unattended Answering Device card, and a Model 3567 Voice
Response card. The Model 3185E boards allow control of customer devices by means of a
dry contact closure through a relay on the Model 3185E board. The DTMF control signals
may be input to the cards via a two wire analog signal, such as a microwave link or an audio
subcarrier on a satellite feed. Or they may be input via a dial up telephone line, connected
through the Model 3137B UAD and the 3567 voice response/control card.
If the input is through the telephone line, a voice response/control card is installed. It
provides a voice message to the caller, and requires a DTMF code to access the control
cards.
The individual cards may be programmed in unique ways. Each card may be individually
set for a distinct actuation code. Please refer to the set up instructions for specific types to
determine the best use in your application.
Specifications
Audio Input 600
Ω Balanced
Input Signal Range -24 dBmV to +6 dBmV
Digital Validation 40 mSec. minimum
Inter-digit Time 40 mSec. To 3 seconds
Digits per second Maximum 12 @
± 6 dB twist
Set/Rest Inputs > 20 mSec. Pulse to GND
Relay Outputs SPDT; 2A @ 30 VDC
FCC Registration AAK-99W-67353-VP-N
Telephone Ring Voltage 60 to 150 VAC
Power Requirement 94 – 240 VAC 50/60 Hz
Physical 1.75” H x 19” W x 10.25” D
Specification are subject to change without notice.
Accessories Included:
Instruction Manuals on CD
Rack Mounting Kit