WS 909-1-PL: Gehrke-intercom

Features

Neural and serverless industrial sub-station in robust die-cast aluminium housing, for use in industrial environments.

1 call button as large mushroom button
External loudspeaker can be switched on (can be switched off when a call is answered)
Electret microphone
Close-talking microphone as special accessory (surcharge)
Loudspeaker (2 watts)
Echo cancellation for duplex operation
Function monitoring with messages via SNMP with the NK-SNMP add-on
Microphone sensitivity and volume adjustable via integrated browser
Integrated USB interface for additional equipment
Up to 64 I/Os or sensors can be connected via I²C adapter
Connection options for 2 potential-free inputs
3 output relays can be used for control functions or as auxiliary contacts, switching capacity 2A / 30V
Network connection: RJ 45, VLAN-capable, cabling min. category 4
3-way network switch can be integrated (daisy chain functionality possible, spanning tree optional)
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
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 watts (without additional amplifier)
Operating voltage	PoE / Class 0
Ambient temperature	-20 °C to +70 °C
Loudspeaker	Full-range loudspeaker, 8 Ohm Sound pressure: 1 W / 1 m - 93 dB Frequency range: 200 Hz - 16 kHz +/- 10 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
Housing	Die-cast aluminium
Cable entry	via cable gland
Dimensions	(W x H x D) 120 x 220 x 80 mm
Weight	1.7 kg