User's Manual

Limited Internal
CONFIGURATION DATA 9 ( 11 )
EIN/R/I Anders Larsson 1/1551-COH 109 334/1 Uen
ERA/RGG/TOC Jan Lundkvist 2002-06-03 A
Prepared (also subject responsible if other) No
Approved Checked Date Rev Reference
E
The external transmission cables are connected to the Connection Field (CF)
located on top of RBS cabinet. The choice of connection points depends
on the configuration of ETB.
Panel of the CFs are connected internally to the ETBs in the subracks.
• ET-M1
• ET-M4
ET-M1
The connection interface in the Connection Field (CF) is equipped with eight
female RJ-45 connectors for the ETB cables. Each connector have one port.
Three types of transmission standards for the ET-M1 are presented in table
7 and table 8 .
Table 7 Transmission standards, ET-M1
Transmission Stan-
dard
Transmission Capac-
ity ( Mbit/s)
Physical Layer Inter-
face Specification
J1
1.5
G703
E1
2
G703
Table 8 Cable Characteristics.
Transmission Stan-
dard
Cable Impedance Cable Type
J1
110
Twisted pair
E1
120
Twisted pair
E1
75
Coaxial
ET-M4
The connection interface in the Connection Field (CF) is equipped with two
pairs of female SC connectors for the ETB cables. The transmission standard
for the ET-M4 is presented in table 9 and table 10
Table 9 Transmission Standard ET-M4
Transmission Standard Transmission Capacity ( Mbit/s)
STM-1
155
Table 10 Cable Characteristics
Transmission Standard Cable Type
STM-1 Optical Fibre