WS 908-EV-FL: Gehrke-intercom

NeuroKom^® IP technology
Serverless cell call station
1 call button (piezo button) with location light
Vandal-proof
SIP-compatible

Features

Neural and serverless cell call station with 1 call button (piezo button) with integrated location light, 5 mm anodised aluminium front panel, for wall installation in conjunction with separate flush-mounted box UPK 31.

1 piezo push-button element (with pilot light) for multiple function (call and answer button to switch off call blocking)
Loudspeaker, microphone and display elements protected against mechanical damage
Optical and acoustic call signalling when a call is raised
Tamper contact
Vandal-proof design (flush-mounted)
Echo cancelling 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
Connection options for 6 potential-free inputs
3 output relays can be used for control functions or as auxiliary contacts, switching capacity 2A / 30V
Network connection: RJ45, VLAN-capable, cabling min. category 4
Operating voltage: PoE / class 0
SIP-compatible (Session Initiation Protocol)

Attributes

Table Caption
Front panel	Aluminium, anodised silver-natural
Network protocols	IP, TCP, UDP, ARP, IGMP, SIP, RTP, HTTP, TFTP available as add-on: SNMP
Network connection	RJ45, VLAN-capable, cabling min. category 4
Operating system	ellan:RTOS Real-time
Frequency range	depending on codec, limited by loudspeaker - G711 / 3.4 kHz - G722 / 7 kHz with the NK-SNMP add-on - PCM32 / 15 kHz - PCM44 / 21 kHz
Energy consumption	max. 4 W (without additional amplifier)
Operating voltage	PoE / Class 0
Loudspeaker	Full-range loudspeaker, 8 Ohm Sound pressure: 1 W / 1 m - 94 dB
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
Inputs	a total of 6 potential-free (minus destination buttons)
Outputs	4 relay outputs in total Switching capacity: 2 A/30 VDC or 125 VA
Ambient temperature	-20 °C to +50 °C
Dimensions	(W x H x D) 120 x 280 x 5 mm (aluminium front panel) 100 x 253 x 52 mm (installation dimension) 270 mm mounting hole spacing
Weight	approx. 0.9 kg
Protection class	IP 54