E.F. Johnson Company 3000 SERIES, Setup And Alignment Manual, Page: 55 / 214

5-1
CALL PROCESSOR
SECTION 5 CALL PROCESSOR
5.1 INTRODUCTION
The Call Processor controls the databases for the
Switch and provides processing for certain types of
calls within the system.
The Call Processor consists of
the following:
•
Large Multi-Net Controller (PN 558-3000-126)
•
10 MHz 4-port RS-232 Assembly
(PN 558-3000-122)
•
Call Processor Software (PN 023-9998-180).
5.2 DATA BUSES
The Call Processor connects to the system via
five different RS-232 ports. The SMB and SSB
connect the Call Processor to the Switch via the
Network Interface Module (NetNIM). The MAB,
RGB and RMB connect the Call Processor to ancillary
equipment of the overall system. Refer to Figure 5-1.
1. Net Intra-Terminal Data Bus (NetIDB)
The NetIDB is a 9600 baud full duplex port
connected to the Network Interface Module
(NetNIM). The NetNIM buffers the Call Processor
data to the Intra-Terminal Data Bus (IDB). The Call
Processor communicates with the rest of the Switch
modules on the IDB via the NetNIM.
2. Net Channel Status Bus (NetCSB)
The NetCSB is a 9600 baud single data path that
receives data from the NetNIM to the Call
Processor. This data is a “snap shot” of the channel
activity from the Channel Status Bus (CSB) within
the Switch, collected and buffered by the NETNIM
and sent once every two seconds. This information
may be used by an external device to determine
subscriber air time usage. The NetCSB data
protocol and format are available upon request.
Figure 5-1 DATA BUSES
CIMs CCMs
(NetIDB)
DATA BUS
INTRA-TERMINAL
NETWORK
(NetCSB)
STATUS BUS
CHANNEL
NETWORK
NETWORK
INTERFACE
MODULE
NetNIM
(CIB)
CHANNEL INTERFACE BUS
CONVENTIONAL
CHANNEL
MODULE
INTERFACE
CHANNEL
MODULE
INTRA-TERMINAL DATA BUS (IDB)
(CIB)
CHANNEL INTERFACE BUS
CHANNEL STATUS BUS (CSB)
DISPATCH
MODULE
CHANNEL
DCMs
PSTN OR PABX
TELEPHONE
MODULE
INTERFACE
TIMs
NETWORK
SYSTEM
MODULE
SNMs
SYSTEM NETWORK BUS (SNB)
CALL
PROCESSOR
WIDE
MODULE
AREA
WAMs
LOGGING
MODULE
ENCODER
LEMs
LOGGING RECORDER
ETHERNET
BUS