R180/av Series
50/70/ob78
Installation Manual
50, 71 & 78 Channel
Audio /Video Comb Generator
w/ Trunk Switch
Monroe Electronics
100 Housel Ave Lyndonville NY 14098
800-821-6001 585-765-2254 fax 585-765-9330
monroe-electronics.com
Printed in USA Copyright Monroe Electronics, Inc.
Specifications subject to change without notice.
P/N CX604
Rev A 9/11/02
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 two
years 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, EXPRESSED, 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 to Factory Policy:
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.
Product Overview
This new Monroe Electronics R180/av Series Audio/Video Comb Filter Generator offers
economical, high quality, full screen replacement for EAS systems.
Approved for small cable systems, the R180/av Series Audio/Video Comb Filter Generator
features improved picture quality, and is compatible with all headends. New “Lykinsor”
circuitry renders the inherent beats nearly invisible. Adapted for digital cable programming
with the guard band (72MHz - 76MHz) baseline noise level greater than 40dB down. No
additional filtering is required. The unit’s smaller size minimizes the required rack space.
The R180/av Series Audio/Video Comb Filter Generator meets all FCC aeronautical band
offset requirements.
This instruction manual is intended for use with the R180/av50 (50 channels), R180/av70 (71
channels) and R180/av70/o78b (78 channels) instruments.
Specifications
Audio/Video R180/av50 on all channels 2 through 50 (380 MHz)
R180/av70 on all channels 2 through 71 (500 MHz)
R180/av70/o78b on all channels 2 through 78 (550 MHz)
Video Input level: 0.5 to 2 Volts p ~ p
Frequency response: ± 1 dB, 10 Hz – 4.2 MHz
Standard: U.S. System NTSC sync negative
Input Type: Clamped video, negative sync
Audio Audio carrier level: -16 dB below video carrier
Automatic Gain Control: 30 dB
FM Deviation: ± 25 KHz automatic
Input Level: 0.3 to 3 Volts p ~ p
Frequency Stability: ± 1 KHz
Frequency Response: ± 1 dB 30 Hz to 15 KHz
Adjustable RF Output Control up to 40 dBmV
Trunk Switch
Insertion Loss: .3 dB max.
Return Loss: 20 dB min.
Impedance: 75 Ω
Isolation: 70 dB min.
FCC Offset ± 3 KHz in the aeronautical band
Channel Flatness 3 dB
Power Requirements 110 VAC, 30 Watts
Physical Specifications 19” W x 3.5” H x 13.5” D
Equipment Supplied: Line Cord
Manual
Mounting Kit
Installation
Use with reference to the R180/av70 back panel graphic and installation diagram on
the next two pages. *All subsequent references to the R180/av Series Audio/Video
Comb Filter Generator will use the R180av/70 model number.
• Connect the R180/av70 Series Audio/Video Comb Filter Generator terminal
block on the rear panel to the to the SAM-MIP 921e block using two 2
conductor cables with stripped ends as follows:
R180/av70 GROUND to MIP-921e AUDIO OUT & KEY
R180/av70 KEY to CEMS 0500 NO & COM
R180/av70 AUDIO to MIP-921e AUDIO OUT
• Connect COMM 2 of the MIP-921e to the CEMS 0500 EAS DATA port using
the CX506S cable supplied with the CEMS 0500.
• Connect VIDEO OUT of the CEMS 0500 to VIDEO IN of the R180/av70 (To
acquire the best possible picture adjust the video level on the back of the
R180/av70 with the VIDEO LEVEL control.
• Loop the headend output through the R180/av70 using the RF IN and OUT
ports.
• Adjust the output level of the R180/av70 to match the output of the headend
using the OUTPUT LEVEL control on the rear of the R180/av70. The output
level is factory preset to +33 dB. To activate the unit during testing, place a
jumper between KEY and GROUND in the R180/av70 terminal block on the
rear of the unit.
VIDEO IN – Video input from the character generator.
VIDEO LEVEL – Video input level adjustment.
SWITCHED DC – Switched DC to control external trunk switches.
OUTPUT LEVEL – Output adjust of the R180/av70 to match the headend output.
AUDIO LEVEL – Audio level input adjustment
EAS CONTROLLER BLOCK – Connections to the MIP-921e and CEMS 0500.
RF IN/OUT – High isolation trunk switch.
POWER – AC power input, 120VDC, 60Hz.
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