BSC Cables

This describes the cables of the BSC.

NOTE:

For details on how to install the BSC cables, refer to Installing the BSC Signal Cables and Installing the Power Cables and PGND Cables of the BSC.

Table 1 lists the cables used by the BSC.

• Active/Standby 75-Ohm Coaxial Cable
  The active/standby 75-ohm coaxial cable is a type of E1/T1 cables. The number of active/standby 75-ohm coaxial cables to be configured depends on site requirements. It transmits E1 signals. It is used to connect the GEIUA/GEIUB/GEIUP/GEIUT/GEHUB/GEPUG to the DDF or other NEs.
• Active/Standby 120-Ohm Twisted Pair Cable
  The active/standby 120-ohm twisted pair cable is a type of E1/T1 cable. The number of active/standby 120-ohm twisted pair cables to be configured depends on site requirements. It transmits E1/T1 signals. It is used to connect the GEIUA/GEIUB/GEIUP/GEIUT/GEHUB/GEPUG to the DDF or other NEs.
• Inter-GTNU Cable
  The inter-GTNU cable is an optional signal cable. The number of inter-GTNU cables to be configured depends on site requirements. The inter-GTNU cable is used to connect the GTNUs in different subracks.
• LC/PC-LC/PC Single-Mode/Multimode Optical Cable
  The LC/PC-LC/PC single-mode/multimode optical cable is an optional cable in the BSC. The number of LC/PC-LC/PC single-mode/multimode optical cables to be configured depends on actual requirements. This cable is used to connect the GOIUA/GOIUB/GOIUP/GOIUT/GOGUA/GOGUB to the ODF or to other NEs. It can also be used to connect two GOIUTs. It transmits optical signals.
• LC/PC-FC/PC Single-Mode/Multimode Optical Cable
  The LC/PC-FC/PC single-mode/multimode optical cable is an optional cable in the BSC. The number of LC/PC-FC/PC single-mode/multimode optical cables to be configured depends on actual requirements. This cable is used to connect the GOIUA/GOIUB/GOIUP/GOIUT/GOGUA/GOGUB to the ODF or to other NEs. It transmits optical signals.
• LC/PC-SC/PC Single-Mode/Multimode Optical Cable
  The LC/PC-SC/PC single-mode/multimode optical cable is an optional cable in the BSC. The number of LC/PC-SC/PC single-mode/multimode optical cables to be configured depends on actual requirements. This cable is used to connect the GOIUA/GOIUB/GOIUP/GOIUT/GOGUA/GOGUB to the ODF or to other NEs. It transmits optical signals.
• Crossover Cable
  The crossover cable is an optional Ethernet cable. The number of crossover cables to be configured depends on site requirements.
• Straight-Through Cable
  The straight-through cable is a mandatory Ethernet cable for the BSC. The number of straight-through cables to be configured depends on actual requirements.
• BITS Clock Signal Cable
  The BITS clock signal cable is an optional clock cable. The number of BITS clock cables to be configured depends on actual requirements. This cable is used to transmit BITS clock signals to the GGCU in the GMPS. Based on the impedance, the BITS clock signal cable is classified into 75-ohm coaxial clock cable and 120-ohm clock conversion cable.
• Y-Shaped Clock Cable
  The Y-shaped clock cable is an optional clock cable. The number of Y-shaped clock cables to be configured depends on actual requirements. This cable is used to transmit the 8 kHz clock signals from the GGCU in the GMPS to the GSCU in the GEPS.
• Signal cable of the alarm box
  The signal cable of the alarm box is a type of signal cables. It comes in multiple specifications. You can choose one based on actual requirements. The signal cable of the alarm box is used to transmit the alarm information of the system to the alarm box for audible and visual display.
• PDB monitoring signal cable
  The power distribution box (PDB) monitoring signal cable is used to transmit monitoring signals from the PDB to the service subracks.
• EMU RS485 communication cable
  The RS485 communication cable is used for the communication between the BSC and the EMU.
• GOMU serial port cable
  The GOMU serial port cable is used to connect the GOMU to the local maintenance terminal.
• BSC Power Cable
  The BSC power cables are classified into external power cables and internal power cables. The power cables are mandatory, which consist of -48 V power cables and RTN power cables.
• BSC PGND cable
  The BSC PGND cables consist of the PGND cable for the cabinet, inter-cabinet PGND cable, PGND cable for the power distribution box, PGND cable for the subracks, and PGND cable for the cabinet door. All these cables are mandatory.