Installation Instructions

Integration and Test, RBS 884 Pico (850 MHz and 1900 MHz)
5.10 Semipermanent Paths: Pico 1900 MHz
The Pico 1900 MHz EMRPS Load Distribution is used as input for
establishment of semipermanent paths in the Pico 1900 MHz. Another input
is the available time slots on the PCM links (Table 5-25 on page 5-58 ).
Table 5-25. Pico 1900 MHz PCM Link Data
ChannelsPCM Link
Type
Capacity
Total Traffic
Voice
Channels
Control
Signaling
Link (CLC)
Frame
Synchronization
T1 1.544
Mbit/s
24 23 ts-9 -
E1 2.048
Mbit/s
32 30 ts-16 ts-0
Second T1 1.544
Mbit/s
24 24 - -
Second E1 2.048
Mbit/s
32 31 - ts-0
In some markets, additional time slots are used for Cellular Digital Packet
Data (CDPD). CDPD is designed as an autonomous network within current
TDMA networks, and allows operators to carry packet data services on
their existing cellular infrastructure.
5.10.1 Addresses in Semipermanent Connections: Pico 1900 MHz
5.10.1.1 Remote Interface Line Terminal (RILT) Addresses: Pico 1900 MHz
The Remote Interface Line Terminal (RILT) addresses enable the MSC to
control the cross-connection of each time slot on an incoming PCM link to
the appropriate destination device in the Pico 1900 MHz CRI.
• Local RILT Addresses: Each EMRP and EMRPS channel module
device has an address plug, indicating the local address of the device,
which uniquely identifies the channel module within the EM. The
address range is 0-63.
• Global RILT Addresses: As local addresses are repeated within EMs,
they do not uniquely identify a device on the system level. A global
address is defined when a device is allocated in the system database.
The lowest numbered local address plug used on the channel modules
is the lowest numbered global address for that particular EM.
5-58 1532-AE/LZB 119 3834 Uae Rev PA4 2001-04-04