Ericsson LBI-38965B installation manual Introduction, BCU/CAL Architecture

INTRODUCTION LBI-38965

1. INTRODUCTION

This manual contains installation instructions, physical and functional descriptions, specifications, and usage information for the Enhanced Digital Access Communications System (EDACS) Billing Correlation Unit and the Centralized Activity Logger (BCU/CAL). A block diagram of the BCU/CAL is shown below.

The BCU/CAL works as a subsystem attached to an Ericsson Private Radio Systems (PRS) Integrated Multisite and Console Controller (IMC) and can be set to operate as a BCU, a CAL, or both. Each IMC node must have its own BCU/CAL.

BCU and CAL are two separate capabilities which can run independently of each other on the same machine, yet still utilize resources and utilities common to both.

lAdditional information for BCU/CAL can be found in the following publication:

LBI-38967, EDACS Billing Correlation Unit/Centralized Activity Logger User Interface Manual

		RF	RF
	System		System
Console
Terminal	Downlink
DAT (Optional)		MIM	MIM
BCU		C	Area
CAL		A	IMC
		M

High-Speed

HDLC Link

RS-422

Ethernet

TCP/IP WAN

	Emulex	Emulex
	Terminal	Terminal
	Servers	Servers
Customer	16 RS-232	16 RS-232	EDACS
Billing			Network
Computer	DEC	DEC	Manager
	Terminal	Terminal
	Servers	Servers
DECNet
LAN

System

Manager

The dotted lines enclose the CAL-specific interfaces of the BCU/CAL.

Figure 1 - BCU/CAL Architecture

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