Datasheet
SIP-ET 908A
1
2
SIP Module SIP-ET 908A
Full Duplex capable SIP modules are build-in kits for inte­
gration in existing housings and panels or building of cus­
tomer specific stations. The stations are connected directly
to the Ethernet (LAN/WAN) and in this manner are connected to a compa­tible SIP Server via the IP-network. The built-in
switch with downlink function allows direct connection of an
addi­tional IP-device (e.g. an IP-camera).
Besides high volume, the SIP modules provide a numerous
amount of further features: Pre-recorded audio can be applied in a multi-purpose manner, e.g. as acoustic ­indication
at line fault or as waiting information at call initiation, a
configurable background noise canceller provides a crystal clear communication in challenging situations. Furthermore, the modules are perfectly suited for use as door
stations at entry- and gateways, due to integrated relay
outputs.
Other application examples: emergency stations at highways, park ­ticket machines or also for smaller systems
with door functions.
1. SIP-ET 908A
SIP module with switch and RJ 45 sockets (mounted
horizontally) for IP uplink/downlink, built-in amplifier class
“D” 2.5 W. Prepared for connection of three single buttons,
a loudspeaker, a microphone and a multifunctional RGB-LED
for indication of conversations.
2. SIP-ET 908A-1
Same as SIP-ET 908A however with vertically mounted
RJ 45 sockets.
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datasheet
SIP-ET 908A
Technical Data – Benefits
Benefits
Technical data
Operating temperature range: –20° C to +60° C
(–4°F to 140° F)
Storage temperature range: –20° C to +60° C
(–4°F to 140° F)
Relative humidity:
Call button:
up to 95% not condensing
Possibility for connection of 3 single buttons
Microphone input:
for electret microphone or
dynamic microphone
Mic Input: nominal level 2.8 mV on 3.3 kΩ
(Mic-feeding voltage 2.5 V)
Connection for loudspeaker:
2.5 W at 4 Ω / 1.5 W at 8 Ω
LS-Output: max. 3.5 Veff (LS-Pot max)
Amplifier: Status indication:
Outputs:
Built-in amplifier class “D” with 2.5 W
Possibility for connection of a LED 6 mA
2 SPDT relay outputs
30 V / 1 A: 100,000 make-and-break cycles
RAM Memory:
32 MByte
Flash Memory:
8 MByte
DTMF Decoding:
RFC 2833
SIP User Agent (UDP):
RFC 3261
IP Protocol:
IPv4, TCP, UDP, HTTP, RTP, RTCP
DHCP, SNMPv2
Frequency range:
Connection:
- IP Uplink/Downlink:
300 - 3,400 Hz
pluggable screw terminals
shielded RJ 45 modular jacks
Cabling:
min. Cat. 5
• Very high volume
• Full Duplex for natural, hands-free communication
• SNMP for surveillance of the station
• Using Pre-recorded audio as:
–– Waiting information at call initiation
–– Individual call tone for call initiation
–– Location message
–– Acoustic indication at line fault
• Control of the 2 relays e.g. as door opener via
–– DTMF post-dial or
–– Web
• Attendant contacts for various functions, e.g.
–– Additional signalisation while ringing, during a call or in
case of malfunction
• Operation without Server possible
• Configurable Acoustic Echo Canceller (AEC)
• Configurable Background Noise Canceller
• Adaptive jitter buffer
• Complies with SIP standard for easy integration in every SIP
capable PBXes
Power supply:
12 - 24 VAC or 15 - 35 VDC, 500 mA
or PoE
Power consumption:
1.4 W idle
approx. 1.7 W at conversation (depending on volume)
• Integrated webserver for configuration & firmware update
PoE (Power over Ethernet):
IEEE 802.3af standard
Power consumption of the terminal device:
Class 0 (0.44 W to 12.95 W)
• 3.4 kHz speech quality for optimum intelligibility and
­compatibility
Codecs:
• Increased system availability by redundant LAN infrastructure
G.711 a-Law
G.711 μ-Law
prepared for G.722
Ethernet:
2 x 10/100 MBit/s (full/half Duplex)
Measurements:
SIP-ET 908A: 65 x 130 x 18 mm
(2.56 x 5.12 x 0.71 in)
SIP-ET 908A-1: 65 x 130 x 21 mm
(2.56 x 5.12 x 0.83 in)
Weight:
approx. 220 g (0.5 lbs)
System Requirements
• Compatible SIP Server (see page 5) or
• G8-VOIPSERV (for additional features)
–– Adjustment of microphone sensitivity and volume
• Flexible operation via Power over Ethernet or via external
power supply
• The integrated data switch function enables the connection
of further IP devices, e.g. IP camera
• Configurable Auto Answer Function
• Instant boot (system boot within seconds)
• Communication via IP-data networks – no additional cabling
required
Extent of Supply
SIP-ET 908A / SIP-ET 908A-1:
1 SIP module including
• 4 fixing spacers with M3 thread
• Short reference
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datasheet
SIP-ET 908A
Typical Applications
emergency systems at highways
A typical application for use of SIP modules are emergency systems at highways.
• The SIP modules integrated in helppoints are connected to the appropriate SIP server and a call center over the IP network.
• A possible line fault is indicated acoustically via pre-recorded audio and can be processed by the SIP Server.
Call Center
Telephone
SIP
*
0
#
SIP
0
*
Server
#
IP NETWORK
operation as door station
Due to integrated relay outputs it is possible, to use the SIP modules as door stations (with door opener contacts) at entry- and gateways. The door opener contacts can be controlled by means of DTMF post-dialling or via web.
SIP
Telephone
*
0
Server
#
IP NETWORK
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datasheet
SIP-ET 908A
Typical Applications
In smaller Systems
Due to the open standard of the SIP protocol, the modules can be operated without server. Therewith, cost-efficient use of the modules
in smaller systems is enabled.
Telephone
SIP
*
0
#
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datasheet
SIP-ET 908A
Compatibility
Compatibility SIP PBX
Basically the SIP stations can be used with any SIP server.
The following server types have been tested explicitly by Commend and therefore a proper functionality can be confirmed:
manufacturer *
Type
version
Digium
Asterisk
Version 1.2, 1.4, 1.6
Cisco
Cisco Call Manager
Cisco Unified Communication Manager
Version 5 or higher
Nortel
CS1000
Version 6
Innovaphone
Virtual Appliance IPVA
Version 9 final
Alcatel
OmniPCX Enterprise
OXE
Siemens
Hipath 4000
Version 5
3CX
3CX for Windows
3CX PhoneSystem 9
Starface
Starface free
Version 4.6.5.1
Aastra
MX-ONE
Version 4.1 SP 1
* The listed products and company names are brand names or registered trademarks of their respective owners.
Voip provider
Type
version
Sipgate
Sipgate.at, Sipgate.de
December 2010
Vodafone Arcor
Vodafone.de
January 2011
blueSIP
blueSIP.net
May 2011
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datasheet
SIP-ET 908A
Installation
connection SIP-ET 908A
• When opening the stations ESD precautions must be
observed.
Connection of Direct Dialling Buttons:
Up to 3 buttons at the terminals X,0,T
GND
• The modules may only be opened by authorised service
engineers.
Loudspeaker 4 or 8 Ω
LS2
LS1
MIC –
MIC+
precautions
X0T
Potentiometer
Volume
(LS)
measurements SIP-ET 908A
Measurements in mm (inch), not to scale!
Factory
Reset button
18 (0.71)
SIP-ET 908A:
21 (0.83)
SIP-ET 908A-1:
PWR2
PWR1
LED
LED+
OUT1
OUT1
Potentiometer LS
OUT2
OUT2
35 (1.38)
25 (0.99)
ø5.5 (2x)
(0.22)
15 (0.59)
6.5
(0.26)
IP Uplink
+ PoE
IP Downlink
(e.g. IP-camera)
• PoE has to be connected to the RJ 45 jack “IP Uplink” (see
above).
60 (2.36)
80 (3.15)
130 (5.12)
12 24 VAC
500 mA
15 35 VDC
Attention – Use of PoE:
If multiple SIP-ET 908A are connected in series, then only
the 1st device can be supplied with Power over Ethernet.
All other devices (connected in series) must be supplied
­separately by an external power supply unit.
ø3,2 (4x)
(0.13)
ø4 (4x)
(0.16)
55 (2.17)
65 (2.56)
• Further IP devices can be connected to the RJ 45 jack
“IP Downlink” (see above), like e.g. an IP camera.
But it is also possible to link up to 20 SIP-ET 908A in series
via this ethernet interface.
5
(0.2)
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datasheet
SIP-ET 908A
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