LI140
VoIP dial-up equipment for PA systems
The 19“ LI140 connects telephones with a PA system. It can be used for industrial applications as well as in the traffic and transportation sector. The VoIP dial-up equipment for PA Systems can be used with a business telephone system with SIP-protocol. The LI140 delivers speech between a telephone and a PA system and automatically answers incoming calls.A configurable password protects the PA system against unauthorized access. It has to be entered before accessing the system.
Once the user correctly entered the password over the telephone keypad, it is possible to select speakers and use different line arrays. Thereby, several different lines can be used simultaneously. The person calling always ends a call.
Through the serial RS-232 Interface the settings of the LI140 can be changed.
The system uses a voltage of 24V DC.
Choose between the following options:
direct dial of PA system lines
direct dial of PA system speakers
Technical data
Operating voltage | 24V; PoE at VoIP on request |
Power consumption | 800 mA |
Operating temperature range | 0°C … +50°C |
Insulation resistance | 5KV AC |
Power consumption | 4 W |
Peak load | 1.5 A for 100 ms |
Connection | 96 pole DIN 41612 bar |
Programming interface | Ethernet seriell |
Dimensions (HxWxD) | 130x40x170 mm |
Network connection | RJ 45 10/100 MBit |
Audio connection | 4-wire 600 Ohm 0dB |
Line connections | 2×2 (open Collector), each rated at 50 V / 550 mA |
Processor | ARM-Cortex-A53 |
Operating system | Linux |
VoIP Protokoll | SIP (RFC3261) |
Audiocodec | G.711 a-Law |
Audio bandwidth | 3.4 kHz |
EU-Directives | 2001/95/EC, 2011/65/EU |