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LBI-38965 SPECIFICATIONS
18
3.3. CAL OPERATIONAL SPECIFICATIONS
This section outlines the specifications that are unique to the CAL personality. Refer to Figure 4 for the CAL
architecture.
Before linking a CAL to a System Manager, consult the EDACS VAX/VMS System Manager’s User’s Manual (LBI-38984)
to assure that the proper System Manager configuration has been chosen to handle the number of sites to be monitored.
Failure to install a properly sized System Manager may result in the loss of logging data during peak periods.
3.3.1. System Manager Interface
The CAL interfaces to the System Manager's DECServer(s) via one or two terminal servers capable of supporting up to
32 independent asynchronous RS-232 serial connections. The ports on the CAL's terminal servers are connected to the
ports on the System Manager's DECServers via RS-232 cables.
3.3.2. Protocol Supported
The CAL is capable of communicating with the System Manager using the System Manager-to-Site Controller (SM-
SC) and Site Controller-to-System Manager (SC-SM) protocol defined in EDACS Protocol Specification, System
Manager/Site Controller Version 1.1.
Figure 4 - CAL Architecture
High-Speed HDLC
Link (RS-422)
RF
System
RF
System
Area
IMC
MIM
MIM
CAM
Centralized
Activity
Logger
(CAL)
RS-232
CAL Console Terminal
TCP/IP
LAN
Emulex
Terminal Servers
16 RS-232
DEC
Terminal Servers
Emulex
Terminal Servers
16 RS-232
DEC
Terminal Servers
System
Manager
DECNet
LAN
NOTE