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3653-61 4-Wire Transmission Only with Extended Range
CONTENTS
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Figure 1. 3653-61 (Issue 6) 4W Transmission Only with Extended Range (4W TO W/ER) Channel Unit
e2003 Charles Industries Ltd.
All rights reserved. Printed in United States of America.
The availability of features and technical specifications herein subject to change without notice.
Telecommunications Group
(4W TO W/ER) Channel Unit
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3653-61
T
LINE
&
R
DROP
T1
LINE
&
R1
DROP
4W TO
W/ER
ISS. 6
Section 365-361-206
Equipment Issue 6
First Printing, September 2003
Page 1 of 11
PAGE
2
2
3
5
6
6
6
8
8
8
8
9
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Related Manuals for Charles 3653–61
Summary of Contents for Charles 3653–61
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Page 1: Table Of Contents
ISS. 6 Figure 1. 3653–61 (Issue 6) 4W Transmission Only with Extended Range (4W TO W/ER) Channel Unit e2003 Charles Industries Ltd. All rights reserved. Printed in United States of America. The availability of features and technical specifications herein subject to change without notice. -
Page 2: Part 1. General
Extended Range (4W TO W/ER) Channel Unit. Equipment Function The 3653–61, shown in Figure 1, is used in the Charles Industries 360/363 D4 Digital Carrier Terminal and pro- vides a 600-ohm balanced interface to the 4-wire private line on the office-side of the facility. -
Page 3: Part 3. Application Guidelines
Section 365-361-206 their protective packaging. A module intended for future use should be tested as soon as possible and returned to its original protective packaging for storage. CAUTION Do not ship or store modules near strong electrostatic, electromagnetic, or magnetic fields, or in a highly radioactive environment. - Page 4 Section 365–361–206 (XMT TLP: +5.2dBm) J1-A PRESCRIPTION GAIN (dB) LINE ENCODER XDATA FILTER 0 TO 32.5dB IN .1dB STEPS XMT GAIN -4.8dB (NOTE 13) S4 & S5 T&R (NOTE 18) DROP J1-B -48VS CGAW RELAY INPUT T 50 RANGE +10 R 48 -22.5dBm (RCV TLP:...
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Page 5: Part 4. Circuit Description
Section 365-361-206 NOTES (CONTINUED): The XMT INPUT range at T&R: -22.5dBm to +10dBm. The Trunk process relay is activated immediately due to an unit is factory adjusted for -16dBm input, with the XMT alarm condition in the channel bank. Two seconds later it is gain set to 26dB. -
Page 6: Part 5. Mounting
Section 365–361–206 of the RCV PRESCRIPTION GAIN allows finely controlled adjustment (0.1dB increments) for an output level from +10 to –22dBm. The adjusted VF signal is then buffered via the RCV GAIN circuit and routed through transformer T2 which pro- vides dc isolation from the line and a balanced output level at T1&R1 (pins 8 and 7). - Page 7 Section 365-361-206 RCV dB .1 .2 .4 .8 1 2 4 8 16 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 Jumper wires XC and YC are actually located on XMT dB the bottom .1 .2 .4 .8...
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Page 8: Part 8. Alignment
11.1 Warranty Charles Industries, Ltd. offers an industry-leading, 5-year warranty on products manufactured by Charles Indus- tries. Contact your local Sales Representative at the address or telephone numbers below for warranty details. The warranty provisions are subject to change without notice. The terms and conditions applicable to any specific... -
Page 9: Part 12. Specifications
Charles Industries, Ltd. offers a standard repair or exchange service for units either in- or out-of-warranty. With this service, units may be shipped to Charles Industries for either repair and quality testing or exchanged for a replacement unit, as determined by Charles Industries. Follow the Repair Service Procedure below to return units and to secure a repair or replacement. - Page 10 Section 365–361–206 12.1.1. Electrical (End-to-End 7 5/6-Bit Operation) (b) IMPEDANCE: 600 ohms, balanced. (c) TRANSMIT AND RECEIVE LEVEL RANGES: +10 to –22.5dBm. (d) LINE SIDE LEVELS: Transmit (fixed): +5.2dBm TLP Receive (fixed): +5.2dBm TLP (e) ADJUSTABLE GAIN: Transmit Minimum: 0.0dB Maximum:+32.5dB Step:0.1dB Receive...
- Page 11 Section 365-361-206 (m) TRANSMIT/RECEIVE IDLE NOISE: 20dBrnC0, maximum. (n) SIGNAL TO DISTORTION RATIO: 35dB minimum at 0 to –30dBm0; 29dB minimum at –40dBm0; 25dB minimum at –45dBm0. (o) TRANSMIT AND RECEIVE SINGLE FREQUENCY DISTORTION: –40dB maximum from 0 to 4kHz; –28dB maximum from 4kHz to 12kHz.
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