Installation Instructions

IntegrationandTest,RBS884Pico(850MHzand1900MHz)
MBLC/TC1 The Mobile Telephony Base Station Link Check
function block sends and receives a 2–kHz tone over
a speech circuit as a continuity check of the speech
path during the call setup procedure.
MBLT The Mobile Telephony Base Station Line Terminal
function block handles the hardware interface for the
line terminals to the base station.
MBTLA The Mobile Telephony Base Station Transcoder
and Line Terminal Administration function block
contains command functions for administrating the
connection or disconnection of transcoders an
d line
terminals to and from channel equipment.
MBTRAC/MB-
TRC
The Mobile Telephony Transcoder, Device
owning block handles the administration a
nd
maintenance of transcoder devices. The block
also performs route administration and traffic
handling. MBTRAC/MBTRC interworks wit
h
the switching network terminal owning block
MBTRACS/MBTRCS to supervise the Transcoder
Rate Adaptor Board (TRAB2/TRA
B3) hardware.
One transcoder rate adaptor board corresponds to
four coded transcoder devices and twelve uncoded
transcoder devices.
MBTRACS/MB-
TRCS
The Mobile Telephony Transcoder, Switching
Network Terminal (SNT) owning function block
handles the administrat
ion and maintenance
of the devices for the transcoder function
within the switching network terminal and the
EM/CM concepts. The ac
tual device handling is
managed by the device owning function block
MBTRACS/MBTRC. A signal network terminal
can handle 32 dev
ices in eight groups. Each group
consists of one coded device and three uncoded
devices.
5.1.2.4 RBS Transmission Function Blocks
Transmission function blocks to and from the RBS are:
RICS The Radio Int
erface Clock Synchronization function
block controls the clock synchronization for an
Extension Module Radio Selector (EMRS).
1532-AE/LZB 119 3834 Uae Rev PA4 2001-04-04 5-13