20
SIC-1BS
Introduction
The 1-port ISDN BRI S/T interface module (SIC-1BS) transmits and processes ISDN BRI S/T traffic
flows. It can operate in dial-up or leased line mode.
Interface specifications
Table 35 Interface specifications
Connector RJ-45
Number of connectors 1
Cable type Telephone cable with ferrite core
Interface standard
• ITU-T I.430
• Q.921
• Q.931
Working mode
• ISDN Dial-up
• ISDN leased line
Supported services
• ISDN
• ISDN supplementary services
• Multi-subscriber number
• Sub-address
• Backup
Interface LEDs
Figure 24 SIC-1BS panel
Table 36 LED description
B1
• Off indicates the B1 channel is idle.
• Flashing indicates the B1 channel is being used for data communication.
B2
• Off indicates the B2 channel is idle.
• Flashing indicates the B1 channel is being used for data communication.
ACT
• Off indicates the inactive state.
• Steady on indicates the active state.
On
• Off indicates the interface module is powered off.
• On indicates the interface module is powered on.
Interface cables and connection methods
For more information about BS Interface cables and connection methods, see
"ADSL/BS/FXS/FXO/AM/FCM interface."