Model 637 Cue Tone Instruction Sheet
Description
Monroe Electronics' Model 637
Tone Decoder allows switch
control via Cue Tones.
Settings may be enabled for use
of 1 to 4 Cue Tones. The output
may be made to latch, toggle or
provide a momentary pulse.
Input levels may vary from
–24 to +6 dB of audio.
Please refer to the instruction
manual for the 3185E for
specific switch and control
settings.
Installation
1. Remove the four screws on the
cover of the 637. Refer to the
model 3185E manual, and set
the jumpers for latching, toggling
or momentary, and the number
of digits to decode. Then set
the 3 rotary switches to the
code to be decoded.
2. Connect the device(s) to be
controlled, to the common
(COMM) and the normal open
(NO) or the normally closed (NC)
– as desired – connections on
the terminal block.
3. The connections on the terminal
block for (RELAY 1) and
(RELAY 2) are separate
contacts, but are part of the
same relay.
4. The (SET) and (RESET)
connections are used as
described in the 3185E manual.
5. Connect the power supply’s
white wire to the +12 V DC on
the 637, and the BLACK wire to
(GND).
6. Replace the board in the case,
and reinsert the screws to
secure the case top.
Specifications
Auto Input Impedance
Selectable 600Ω ± 10%
>10 KΩ balanced/unbalanced
Audio Input Coupling
AC
Audio Input Level
45 mV p~p (-34 dBmV) to 13.8 V
p~p (+16 dBmV)
Audio Input Range
-24 dBmV to 6 dBmV: adjustable
± 10 dBmV
Digit Validation Time
40 mSec minimum
Inter-digit Time
40 mSec to 3 Sec
Set/Reset Inputs
>20 µSec to 3 Sec
Relay Output
DPDT; 2A @ 30 VDC
Power Requirement
100-240VAC, 50-60 HZ input/
12VDC output
Supplied
WARRANTY
Monroe Electronics, Inc. warrants to the owners, each instrument and sub-assembly manufactured by them
to be free from defects in material and workmanship for a period of one year after shipment from factory.
This warranty is applicable to the original purchaser only.
Liability under this warranty is limited to service, adjustment or replacement of defective parts (other than
fuses or batteries) on any instrument or sub-assembly returned to the factory for this purpose, transportation
charges prepaid.
This warranty does not apply to instruments or sub-assemblies subjected to abuse, abnormal operating
conditions, or unauthorized repair or modification.
Since Monroe Electronics, Inc. has no control over conditions of use, no warranty is made, or implied as to
the suitability of our product for the customer's intended use.
THE WARRANTY SET FORTH IN THIS ARTICLE IS EXCLUSIVE AND IN LIEU OF ALL OTHER
WARRANTIES AND REPRESENTATIONS, EXPRESS, IMPLIED OR STATUTORY INCLUDING, BUT
NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. Except for
obligations expressly undertaken by Monroe Electronics, in this warranty, Owner hereby waives and
releases all rights, claims and remedies with respect to any and all warranties, express, implied or statutory
(including without limitation, the implied warranties of merchantability and fitness), and including but without
being limited to any obligation of Monroe Electronics with respect to incidental or consequential
damages, or damages for loss of use. No agreement or understanding varying or extending the warranty will
be binding upon Monroe Electronics unless in writing signed by a duly authorized representative of Monroe
Electronics.
In the event of a breach of the foregoing warranty, the liability of Monroe Electronics shall be limited to
repairing or replacing the non-conforming goods and/or defective work, and in accordance with the
foregoing, Monroe Electronics shall not be liable for any other damages, either direct or consequential.
RETURN POLICY TO FACTORY:
Materials returned to Monroe must have a Return Material Authorization number. To obtain a RMA
number, contact our A/V Switching & Control Customer Service at 585-765-2254 or fax 585-765-9330.
Customers have 30 days to determine that the product ordered fills their need and performs as described
in Monroe’s literature. Units returned for approved repair or credit, must be in the original packaging
including all parts and paperwork plus be in very good physical condition. If not, the customer is billed the
cost to refurbish the unit and for missing accessories and merchandise. No products may be returned for
exchange or credit after 12 months of the shipment date. Monroe reserves the right to repair or replace
units under warranty.
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