3653–61 4-Wire Transmission Only with Extended Range (4W TO W/ER) Channel Unit
■Document Purpose
▲This document provides information on the Charles Industries 3653–61 (Issue 6) 4-Wire Transmission Only with Extended Range (4W TO W/ER) Channel Unit.
■Equipment Function
▲The 3653–61, is used in the Charles Industries 360/363 D4 Digital Carrier Terminal and provides a 600-ohm balanced interface to the 4-wire private line on the office-side of the facility.
■Equipment Features
▲The 3653–61 (Issue 6) 4W TO W/ER includes the following features:
◆Complies with AT&T Publication 43801 Specifications
◆Extended Range (ER) capability (+10 to –22.5dBm)
◆Prescription gain control of up to 32.5dB in 0.1dB increments in both the transmit and receive paths
◆Front-panel-accessible breaking jacks
◆Lead conditioning (trunk processing relay controls leads 1 and 2) during carrier failure
▲The breaking jacks provided on the T&R and T1&R1 leads of the 3653–61 provide access by breaking the line toward the DROP (private line facility) and LINE (carrier facility).
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User's Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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September 2003 |
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Issue 6 |
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71 KB |
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