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Backplanes

Backplanes

The basis and expansion units (GGx and EGx) each consist of a 19 inch module frame and a backplane.

The backplanes allow a custom, easy and quick installation.

At a Glance:

  • D-sub connectors as interface to the outside world
  • U-connectors for 6.3 mm flat pin bushing (48 V supply)
  • Solder-in bridges for variable, application-specific wiring
    • Group assignment for the operating voltage
    • Different grounding options
    • Phantom power supply for call stations (four-wire technology)
    • Disaster function of the V100 amplifier
  • Expansion possibility on systems with 28 card slots

The following picture shows a full GG1 basic unit configured for 48 call stations:

Fig. GG1
Fig. GG1

The DVS-21 system consists of a basic unit (GG1, GG2 or GGS) and can be expanded with the expansion units (EG1 or EG3).

The following table lists the backplanes which are associated with the devices:

GG1: Basic unit 1 BPB12: Basis backplane for CPU1, SV01 and 12 modules 6TE
GG2: Basic unit 2 BPB83: Basis backplane for CPU1, SV01, 6 modules 6TE and 3 modules 12TE
GGS: Basic unit standby BPS10: Basis backplane for CPU1, SV01, Standby CPU1, standby SV01 and 10 modules 6TE
EG1: Expansion unit 1 BPE14: Expansion backplane for 14 modules 6TE
EG3: Expansion unit 3 BPE07: Expansion backplane for 7 modules 12TE

Fig. BPB12 from the rear
Fig. BPB12 from the rear

Fig. BPE14 from the rear
Fig. BPE14 from the rear

Fig. BPE07 from the rear
Fig. BPE07 from the rear

Fig. BPB83 from the rear
Fig. BPB83 from the rear

The pictures above show the different backplanes and their important connection and modification options.

  1. 25-pin D-sub connector to connect to the distributor
  2. U-connector for 48 V DC operating voltage
  3. Solder bridge to distribute the operating voltage 48 V DC
  4. Solder bridges for cable screen grounding on the DVS side
  5. Solder bridges for additional voltage supply for the call stations with +/-48 V
  6. Connectors to connect an expansion backplane or to take bus termination connectors
  7. 9-pin D-Sub connector to connect to the amplifier outlet
  8. Solder bridges for disaster allocation
  9. Solder bridges for disaster groups
  10. Solder bridges for V100 output voltage

Technical Data:

Weight: Approx. 2040 g incl. module frame
Installation Height: 3HE (133 mm) incl. module frame
Installation Width: 19 inch (482 mm) incl. module frame
Installation Depth: 240 mm

Combination Options:

The devices can be combined as follows:

GGS
+
EG1
GGS + EG1 GGS
+
2xEG3
GGS + 2xEG3
GG1
+
EG1
GG1 + EG1 GG2
+
EG1
GG2 + EG1
GG1
+
2xEG3
GG1 + 2xEG3 GG2
+
2xEG3
GG2 + 2xEG3

The connection between the basis units and the expansion units is made with plug-in ribbon cable.

The system bus must be terminated on the ends with a bus termination connector with resistance.