WS 938-1-NGRS: Gehrke-intercom

NeuroKom^® IP technology
Serverless NGR/school intercom
1 emergency button and 1 destination button
DIN EN 50726 (VDE 0827) compliant
NGRS = emergency and hazard response system
Built-in or wall mounting
SIP-compatible

Features

Neural and serverless NGRS/school intercom with 1 emergency call release via push-button secured behind glass and 1 call button for organisational tasks. Displays for device "in operation" and microphone "active".

The emergency call station or amok alarm call station is suitable for prevention and security concepts in schools, technical colleges, universities and other educational institutions as well as in public buildings.

With a separate flush-mounted or surface-mounted housing, it can be used either as a flush-mounted or surface-mounted device.

1 emergency call release unit in accordance with DIN EN 50726 (VDE 0827)
1 call button with labelling field
1 "Operation" LED function indicator
1 "Active" microphone Indicated by LED
Loudspeaker
Electret microphone (omnidirectional)
Echo cancellation for duplex operation
Function monitoring with messages via SNMP possible 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 option for 1 potential-free input
3 output relays can be used for control functions or as auxiliary contacts, switching capacity 2A / 30V
Network connection: RJ45, VLAN-capable, cabling min. Cat. 4
Operating voltage: PoE / class 0
SIP-compatible (Session Initiation Protocol)

Attributes

Table Caption
Front	Foil surface in aluminium design (Autotype F150), resistant to disinfectants
Network protocols	IP, TCP, UDP, ARP, IGMP, SIP, RTP, HTTP, TFTP available as add-on: SNMP
Operating system	ellan:RTOS
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
Energy consumption	max. 4 W (without additional amplifier)
Operating voltage	PoE / Class 0
Ambient temperature	-20 °C to +50 °C
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
Dimensions	(H x W x D) 248 x 122 x 7 mm (front panel)
Protection class	IP 54