MINI-LINKEandEMicro
3.10.2.6 RAC (Exp 1 and Exp 2 only)
The Remote Alarm Channel (RAC) is used when MINI-LINK terminals on
different sites cannot be reached by air.
The RAC has two ports, each one with a selectable interface: RS 232C for
analog fixed lines (through modem) and digital ITU-T Rec G.703 for 64 kbit/s
fixed lines.
3.10.2.7 Analog Service Channel (Exp 2 only)
The analog ser v ice channel is used for speech communication between
MINI-LINK sites. The ser vice channel is connected from the service telephone
to the ter minals in the AM M. This connection is controlled through MINI-LINK
Netman or MSM. The service channels are distributed to remote sites through
the MMUs and the RAUs.
3.10.2.8 Service Telephone (Exp 2 only)
Service Telephone (Exp 2 only) The SAU Exp 2 version is delivered with a
two-wire service telephone. The two-digit number for the telephone is set
in MSM. A general call can be made simultaneously to all telephones or a
selective call can be made to a specific number.
3.10.2.9 SAU Stand Alone
SAU stand alone (Exp 1 and Exp 2) can be used for connection of a remote
MINI-LINK C or MkII cluster through the RAC through a fixed line. The RAC
ports provide both the RS 232C interface for connection through modem and
the 64 kbit/s digital interface. Two SAUs are required, one at each end. SAU
stand alone (Exp1 and Exp 2) can also be used to connect a MINI-LINK
network to a remote O&M center through a 64 kbit/ s fixed line. The SAU stand
alone (any version) can be used for connection of user input/output interfaces.
The s ervice channels in the SAU cannot be used.
68
AE/LZT 110 2012 R8C 2002-03-04
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