User's Manual

Table Of Contents
DIB-500 R4.1 Setup and commissioning
Connecting equipment racks (as of 5 carriers)
106 Installation, Operation and Service Manual 90DIB500R41IM_FCC02 99.1
Connecting the equipment racks
Preparation:
The two equipment racks must already be installed in the location provided for this
purpose, refer to section 5.3 on page 92.
The redundancy package must have been installed in equipment rack A (optional),
see section 5.5.1 on page 96.
Carry out the following steps:
Wiring diagrams for connecting the equipment racks A and B
The required wiring diagrams are described in the following sections:
| Without redundancy package, see section 3.3.1.3 on page 68,
| With redundancy package, see section 3.3.1.4 on page 70.
Connect the cables from the scope of supply with the corresponding connections
between the two equipment racks.
The equipment racks have thus been connected with each other.
TIB transceiver
modules (cabinet A
and B) – via Ether-
net
via TIB The TIB transceiver modules are chained via Ethernet. The connection
is made from the first to the second and from the second to the third TIB
transceiver module, etc.
via TIB and LRU
(optional, redun-
dancy package)
The TIB transceiver modules are connected with each other via Ether-
net in the "shape of a ring," see section 3.1.3 on page 42.
GPS synchronisation – via PPS Each TIB transceiver module is equipped with a GPS receiver for this
purpose. For operating both the equipment racks on one GPS antenna
only (mounted to equipment rack A), a PPS (Pulse per Second) con-
nection has been provided. The two equipment racks are connected
with each other through the PPS port on the respective E1 connection
boards.
The PPS signals from TIB transceiver module A and B within an equip-
ment rack are connected with each other and to the E1 connection
board.
Rx antennas (with diversity) If diversity reception is required, the corresponding connectors of the
two equipment racks must be connected with each other.
Table 5.11 Connecting equipment racks – required connections
Connection Description