User's Manual

Table Of Contents
Installation, Operation and Service Manual 90DIB500R41IM_FCC02 99.1 63
DIB-500 R4.1 Product description
Interfaces
3.1.9.7 Redundancy by means of overlapping radio coverage
Especially in critical radio coverage zones, radio coverage can be ensured by employ-
ing two redundant base stations to compensate for the failure of one base station in
exceptional circumstances. In this case, the entire traffic load handled by only one base
station; for this reason, the base stations must be dimensioned appropriately.
If overlapping radio coverage is selected as a redundancy option, this must be taken
into account when planning the radio network, assigning the frequencies in the system
and when dimensioning the base stations.
3.2 Interfaces
Table 3.28 provides an overview of the interfaces of the DIB-500 R4.1. The use of inter-
faces is described in the corresponding sections on the components of the
DIB-500 R4.1. Required connections are described in the procedures for the commis-
sioning in chapter 5 on page 89 or for the component replacement in chapter 11 on
page 171.
Table 3.28 Interfaces DIB-500 R4.1
Number of carriers 1/2 3/4 5/6 7/8
Number of E1 interfaces
Impedance 120 Ω,
LSA+ connection (cutting clamp con-
nector) and RJ-45
46810
Number of external alarm inputs
(open/close)
Connector LSA+ (cut-and-snap-in
connector)
2
Number of digital external alarm
inputs (active/open)
Screwless clamps for 0.5 to 2 mm
2
[20 to 14 AWG]
6 – optional
1)
Number of digital external alarm out-
puts
Relay contact switch (load capacity:
0.1 A at 60 V)
Screwless clamps for 0.5 to 2 mm
2
[20 to 14 AWG]
6 – optional
1)
Number of ethernet interfaces
2)
Specification Ethernet, 10/100BaseT,
Connector RJ 45
481216
Antenna connector Hybrid 7/16 socket
Cavity
High Power
Tx transmitter output FlexibleTx N-socket
Rx receiver input N-socket
GPS antenna connector N-socket