Product manual

Product specifications, System
Technical Product Manual - DCT1800-GAP
TD 92093 (1/LZBNB 103 108 R4D) / 2006-03-09/ Ver.C
© 2006
3
Chapter 2 System
2.1 DECT
Frequency band : 1880 - 1900 MHz
Number of carriers : 10
Carrier spacing : 1.728 MHz
Peak transmit power : 250 mW (cordless phone, base station)
TDMA frame : 10 ms
No. of slots per frame : 24 (12 full duplex channels)
Slot duration : 0.417 ms
Total number of channels : 120
Bit rate : 1152 kbit/s
Speech coding : 32 kbit/s ADPCM (Adaptive Differential Pulse Code Modulation)
Transmission : MC/TDMA/TDD (Multiple Carrier/ Time-Division Multiple Access/
Time-Division Duplexing)
Modulation method : GFSK with BT=0.5
Common interface profile : GAP
Access Rights Class (ARC) : B (B-ARI)
Portable User Type (PUT) : O
Note:
For special applications, systems with a frequency band of 1900 - 1920 and 1910 - 1930 MHz are
available.
2.2 DCT1800-GAP system
Number of simultaneous calls : 60 max.
Number of cordless phones : 600 max. (digital connection) or
: 224 max. (with LTU REX-BRD0019 (ROFNB 157 25/2))
Number of calls per hour : 1800 max.
Number of simultaneous
calls per base station : 8 calls max.
Typical pico-cell size radius : 20 to 60 m
Distance between base station
and radio exchange : 3.5 km max.
Serial interfaces : 2 x RS232-C (for PC and printer)
Battery backup provisioning : optional
Remote service : optional (modem)