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Technical data
Specification
Modular ISDN telecommunications system with 4 module slots
Basic capacity
1 external S0 access (point-to-point or point-to-multipoint
connection)
One internal/external S0 access
2 Vario ports (optionally 2 system telephones or
2 a/b terminals)
1 a/b terminal
Expansion modules
- T module 404
4 Vario ports
(optionally 4 system telephones or 4 a/b terminals)
- S0 module 420
1 external S0 access, 1 switchable internal/external S0 access
- TFE module 402
2 interfaces for the connection of 2 door hands free
4-wire
units to FTZ 123 D 12
- TFE module 403
1 interface for the connection of 1 door hands free unit
2/4-wire
to FTZ 123 D 12
1 interface fore the connection of 1 door hands free unit to CE
Housing dimensions
26 x 32 x 10 cm (height x width x depth)
Weight
3.4 kg
Ambient temperature
- Operation/storage
5 ºC to 40 ºC/ -25 ºC to +70 ºC
Humidity
Max. 70% (no condensation)
Mains connection
230 V AC, +6%/-10%, 50 Hy
- Power consumption
P = 45 W, I
rated
= 300 mA
External fixed S0 access
Point-to-point or point-to-multipoint connection, Euro-ISDN
- Access
via western socket RJ 45 and included IAE connecting
cable IAE8/IAE8
Switchable S0 access
Internal/external switchable S0 access (DIP switch)
Internal: point-to-point, Euro-ISDN (DSS1)
External: point-to-point or point-to-multipoint connection,
Euro-ISDN (DSS1)
- Connection
4-wire by spring terminal connection
- Length
Max. length of the internal S0 access 130 m
- Power
4.5 Watt
- ISDN terminals
Max. 8
