ADCP-50-304 • Issue 19 • June 1999 • Section 1: Introduction

12.Remote switching and alarm control operation up to 1,000 feet away from the PatchSwitch chassis rack;

13.Remote operator control via serial data communications circuits employing either RS-232, RS-422 or V.35 standards;

14.Optional autofallback to either A/B switch position on detection of an alarm;

15.Local or remote bank switching using manual or serial control;

16.0, +5V and –5 to –48 Vdc pulse controlled bank switching, and

17.Direct test access to off-line devices.

2 PURPOSE AND SCOPE

The purpose of this manual is to provide the user with information necessary to install and operate the PatchSwitch equipment. Section 1 is a general description of the PatchSwitch equipment.

2.1PatchSwitch Assembly Configurations

Prepackaged standard product PS assemblies are configured as listed in Table 1-1. All assemblies contain 16 PS modules in the leftmost 16 positions of the 18 position chassis. The 17th position contains a blank panel and the 18th position contains the PS Chassis Control Module. Each of the 16 modules provides patching and/or A/B (A channel DTE or B channel DTE) fallback switching for all 23 leads of an RS-232/V.24 or V.35 circuit. Bank switching, switching operation enable, and master alarm reset are all provided for in the Control Module of the PS Chassis. Each module may be configured as part of an interlocked group.

Only one module of an interlocked group can be in the B state at one time. Each assembly has a blank designation strip for operator labeling of the circuits. The PS assembly has two main functions. First, it allows a user to select from two DTE channels to be connected to a DCE. Secondly, it allows the user to monitor and restore data channels through the use of manual patching. The PS assembly gives positive indication of the current DTE channel in use and allows the operator to switch all 16 channels in the PS assembly with a single switch (bank switch). With user selectable serial remote control, the switching function can be located up to 1,000 feet away for the PS chassis assembly. With user selectable dc controlled bank switching, the bank switching function can be located up to 500 feet away.

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© 1999, ADC Telecommunications, Inc.