WS 919-1: Gehrke-intercom

Features

Neural and serverless industrial sub-station with 1 call button, membrane keypad and display, in impact-resistant plastic housing, for wall mounting.

Remote loudspeaker as a module in the same design (or as an industrial loudspeaker)
Illuminated display (4 lines, 16 characters)
1 call button
4 fixed function buttons
- Speak button
- Call send button
- Volume (+)
- Volume (-)
Electret microphone, (close-talk microphone as an option)
Echo cancellation for duplex operation
Function monitoring with messages via SNMP with the NK-SNMP add-on
Microphone sensitivity and volume adjustable via integrated WEB browser
Integrated USB interface for additional equipment
Up to 64 I/Os or sensors can be connected via I²C adapter
Network connection: RJ45, VLAN-capable, cabling min. category 4
Operating voltage: PoE / class 0
SIP-compatible (Session Initiation Protocol)

Table Caption
Network protocols	IP, TCP, UDP, ARP, IGMP, SIP, RTP, HTTP, TFTP available as add-on: SNMP
Operating system	ellan:RTOS Real-time
Network connection	RJ45, VLAN-capable, cabling min. category 4
Operating voltage	PoE / Class 0
Energy consumption	max. 4 watts (without additional amplifier)
Frequency range	depending on codec, limited by loudspeaker - G711 / 3.4 kHz - G722 / 7 kHz available as add-on: - PCM32 / 15 kHz - PCM44 / 21 kHz
Microphone	Directional characteristic: omnidirectional -65 dB +/-3 (0 dB = 1 V/pa 1 kHz) Speaking distance up to 8 m (depending on room and ambient acoustics)
Amplifier power	A-amplifier: 1.5 W / 8 Ohm; 2.5 W / 4 Ohm B-amplifier (optional) - 25 W
Ambient temperature	-20 °C to +50 °C
Dimensions	135 x 320 x 85 mm (W x H x D)
Weight	1,050 kg
Protection class	IP 65 (not suitable for outdoor installation)