67
S
YSTEM CAPACITY
CHAPTER 3 EXPANSION STAGES AND SYSTEM CAPACITY
Terminal and network interfaces
FXS Analogue, nationally
approved terminals
• Pulse dialling (PUL)
• Frequency dialling
(DTMF)
• Radio units for cordless
phones
• Door intercoms with
DTMF control func-
tions
• Group 3 fax machines
6
• Answering machines
• Modems
22 200
FXS External equipment can be
switched via control outputs
1 1
FXS External switches for
controlling internal switch
groups via control inputs
22 200
FXS General bell 1 1 per node
1. 4 interface cards 8DSI required (not yet supported with Release 6.0)
2. Maximum 64 radio units per location area if 4 location areas are defined, or maximum 128 radio units per loca-
tion area if 2 location areas are defined.
3. Operation on 2 DSI interfaces in each case
4. Refer CloudLink Gateway document
5. Maximum of 2 simultaneous call connections.
6. Transmission with the T.38 protocol is recommended for Fax over IP. The corresponding media resources need
to be allocated.
Table 3.17:Terminal and network interfaces (Sheet 1 of 2)
Max. number... SMBC AIN with SMBC as Master
Ethernet interfaces
4
1
per node
Network interfaces, total
(FXO, BRI-T, PRI, BRI-S ext.)
16 96
Terminal interfaces, total (DSI,
FXS, BRI-S)
22 200
Table 3.16:Maximum number of terminals per system and interface (Continued) (Sheet 5 of 5)