Nortel Networks RTU-292 operation manual Schematic Diagrams

RTU-292 Operations Manual

8 SCHEMATIC DIAGRAMS

8.1 GENERAL

This section has all RTU-292 schematic diagrams. They include:

Figure 8-1Front Panel Schematic

A single sheet showing the switch boards and other front panel components.

Figure 8-2Main Board Schematic

This nine page schematic details all components on the main board. Notes are included to differentiate the schematic when the board used in different JPS products, the RTU-292, the RTU-300 (desktop version), and the RTU-285 (special application version- not for general sale). There are two different power supply schematics. On the eighth page is the schematic for the power supply configuration used with the RTU-292 or RTU-300. The ninth page is the power supply configuration for the RTU-285 only.

Figure 8-3 DSP Module

The DSP Module that plugs into the Main Board via a pair of in-line 20-pin headers has two schematic pages.

Figure 8-4Option Interface Board

This is a single-sheet schematic for the narrow PCB that resides in the side of the options tray and provides an interface between the various standard option boars and the main PCB.

Figure 8-5Voice Prompt Option Board

Figure 8-6Local Phone Option Board

Figure 8-7VMM-100 Option Board

8-1 JPS Communications, Inc.