Ericsson LBI-38965B Manuel d'utilisateur Page 13
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SPECIFICATIONS LBI-38965
13
3.2.2. Billing Architecture
The EDACS billing system architecture is shown in Figure 3. Each IMC is connected to a BCU/CAL via a high-speed
serial communications link using HDLC protocol.
Figure 3 - Billing Architecture
3.2.3. BCU Operation Overview
Each RF system sends all call information to the IMC via the downlink. This is true for single-channel autonomous
trunking (SCAT), Conventional Network Interface (CNI), basic EDACS, and RF systems operating in failsoft mode.
All call activity information messages received by the IMC are collected by the Central Activity Module (CAM), where
each call message is time stamped. These messages, called raw activity records (RARs), are then passed via the high-speed
serial link to the BCU/CAL. The BCU examines each RAR and uses the time stamp values to determine the length of each
call. The actual billing algorithm is quite complex and depends on the BCU's keeping a memory of outstanding calls. The
output of the billing algorithm is stored to a regular disk file as a series of call detail records (CDR).
The CDR format is compatible with Cincinnati Bell Information System’s (CBIS) Cellware billing software.
Console
Terminal
Terminal
Console
High-Speed
HDLC Link
DAT (Optional)
DAT (Optional)
Customer
Billing
Mainframe
TCP/IP WAN
BCU
RF
System
RF
System
RF
System
Area
IMC
MIM
MIM
C
A
M
Downlink
BCU
C
A
M
Area
IMC
MIM MIM
StarGate
To other IMCs
RF
System
Ethernet
The dotted lines enclose one optional setup for a StarGate (multi-node) billing architecture.
- System and Installation 1
- LBI-38965 2
- 1. INTRODUCTION 5
- LBI-38965 INTRODUCTION 6
- INTRODUCTION LBI-38965 7
- 2.1. PHYSICAL SPECIFICATIONS 8
- 2.2. BCU/CAL ARCHITECTURE 9
- 2.3. COMPATIBILITY 11
- 3. SPECIFICATIONS 12
- SPECIFICATIONS LBI-38965 13
- LBI-38965 SPECIFICATIONS 14
- 4. INSTALLATION 20
- INSTALLATION LBI-38965 21
- LBI-38965 INSTALLATION 22
- APPENDIX A 37
- EDACS BILLING (CDR) FORMAT 37
- 1. OVERVIEW 38
- 2. BILLING BY CONVERSATION 38
- 4. RECORD ENCODING 38
- 5. RECORD LAYOUT 39
- 5.5. CDR FIELD DESCRIPTIONS 40
- 6. CALL TYPE DEFINITIONS 41
- 7. CDR FILE TOPICS 45
- APPENDIX B 47
- 1. JUMPER SETTINGS 48
- Terminators Removed 50
- (Terminators Installed) 50
- SCSI Connector 53
- SCSI Conn 54
- 2. CABLE PINOUTS 55
- 1. FABRICATE CABLE TO LENGTH 60
- ORIENTATION CAREFULLY 60
- A14 INMAC H1060-1 61
- ASCII Keyboard 62
- APPENDIX C 63
- FAULT TOLERANCE 63
- LBI-38965 FAULT TOLERANCE 64
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