Download univoice interface card with 2lvoi-p, 2lvoi-t and/or 2w/4w-em

OPEN TRANSPORT NETWORK (OTN)
UNIVOICE INTERFACE CARD WITH 2LVOI-P,
2LVOI-T AND/OR 2W/4W-EM
PBX2
Introduction
PBX1
TLH2
2LVOI-T
2LVOI-T
Modem
2LVOI-T
2LVOI-T
2LVOI-P
Due to its concept, OTN can handle
nearly all existing communication
standards for voice, data, LAN and
video. The UNIVOICE interface is only
one of the many interfaces presently
available for OTN. For more information,
contact the address overleaf.
SCADA
OTN node
Emergency
System
SCADA Modem
SCADA
TLH1
Modem
= Hotline Connection
The UNIVOICE card allows to set up
analog 2- or 4-wire voice connections,
maintaining full feature transparancy. The
card itself does not provide any voice
communication facilities, but onto the
Modules of different types can be
plugged onto one UNIVOICE card.
As the UNIVOICE card can be equipped
with a maximum of 4 plug-on modules,
each of which provides 2 separate
voice circuits, maximum 8 voice
connections are available per card.
The UNIVOICE card contains 8 analog
to PCM (and vice versa) convertors for
impedance matching and leveling.
FEATURES
Interface compliant with
ITU-T recommendation
G.712
Analog 2- or 4-wire voice
connections with or without
separate E&M signaling
Basic UNIVOICE card on
which max. four
2LVOI-P, 2LVOI-T and/or
2W/4W-EM modules can be
plugged
Can be used for a wide
range of applications,
such as PBX and analog
telephones, emergency
telephones, public
address and radio modem
transmission
Large geographical
coverage with transmission
medium immune to noise
= Administrative Telephone
= Emergency Telephone
Description
card 2LVOI-P, 2LVOI-T and/or
2W/4W-EM modules can be plugged
for the desired voice application(s).
8 circuits per UNIVOICE
card (2 circuits per plug-on
module)
Router
For OTN-150/600 and
OTN-X3M networks
Ordering information
Card
UNIVOICE
S30824-Q54-X101
The UNIVOICE interface card can be
installed in the N22 and N215 nodes
for OTN-150/600, and in the N42,
N42C and N415 nodes for OTN-X3M.
Plug-on modules
(to be ordered separately)
2LVOI-P
S30824-Q55-X
2LVOI-T
S30824-Q56-X
2W/4W-EM
S30824-Q57-X
OMS software release
V2.2 and up (OTN-150/600)
V4.0 and up (OTN-X3M)
OTN Systems NV
Atealaan 34, 2200 Herentals, Belgium
Fax: +32 14 25 20 23
E-mail: [email protected]
www.otnsystems.com - www.otn.be
Ref. No.: AE-S247-E-9
Issued January, 2010
Specifications subject to change as
design improvements are implemented
The UNIVOICE front panel comprises
2 female champ connectors, where
the upper one is reserved for the E&M
signaling connections, if applicable, and
the lower one for all voice connections.
The required -48 V power supply and
ringing generator are available on
the card for the operation of analog
extension sets. Also provided is a
12/16 kHz generator which supplies
metering pulses, if required.
Using the OTN network, distance
limitations between the analog
devices are eliminated.
2LVOI-P and 2LVOI-T modules
The 2LVOI-P and 2LVOI-T modules
establish 2-line telephone connections
between a PBX and an analog
telephone. The 2LVOI-P module
interfaces with the PBX, and the
2LVOI-T interfaces with the telephones.
Each module features 2 voice circuits.
Both are equipped with PCM encoding
and decoding logic, and support DP and
DTMF dialing.
Besides connections between
telephones and PBXs, the
2LVOI-T module also supports direct
connections between telephones, for
hot line applications without a PBX.
2W/4W-EM modules
This module establishes 2- or 4-wire
links with separate E&M signaling
on -48V, to connect equipment with
analog interfaces to the OTN such as
modems, emergency telephones, PA
systems, SCADA (Supervisory Control
And Data Acquisition), radio equipment
and, of course, PBXs. Each circuit can
be configured as 2-wire or 4-wire.
Operation
Applications
UNIVOICE card equipped
with 2LVOI-P/T module(s)
When a 2LVOI-T circuit detects an
off-hook telephone, it signals this to
the corresponding 2LVOI-P circuit,
which closes the loop to the PBX.
The PBX, in turn, will send dial
tone over OTN to the telephone.
The UNIVOICE interface card can be
used in many different applications.
The telephone set can now send the
numbers to the PBX, which will set up
the connection to a directly connected
telephone, to a telephone connected
to OTN or to an outside line.
When a call is set up via OTN, the
2LVOI-P circuit detects the ringing
current from the PBX and signals its
presence to the corresponding 2LVOI-T
circuit, which will regenerate it for the
telephone with the same cadence.
As soon as the telephone goes
off-hook, this is signaled to the
2LVOI-P circuit, which closes the
loop to the PBX. Ringing is stopped
and the call is established.
When a telephone goes on-hook,
this is signaled to the 2LVOI-P,
which opens the loop to the PBX,
and the call is terminated.
UNIVOICE card equipped
with 2W/4W-EM module(s)
The voice part of the circuit contains
a transformer coupled circuit.
The PCM signal is multiplexed in the
OTN frame and sent over the ring.
On the receiving side, the PCM signal
is extracted from the OTN frame,
converted back to an analog signal
and sent to the external equipment.
Two circuits are provided,
each consisting of a voice
part and a signaling part.
The voice part handles balanced
analog signals with frequencies in
the range of 300 to 3400 Hz.
The signaling part detects the closing
of a contact. This information is sent
over the ring on a separate channel.
The circuit receiving this information
activates a solid state relay.
The signaling part offers fully
transparent E&M signaling
capabilities at -48V.
The 2W/4W-EM modules can be used
either in point-to-point applications
or multidrop applications.
UNIVOICE with 2LVOI-P/T module(s)
• Stretched networks
In chemical and petrochemical
plants, railways, metro systems,
airport installations, motorways,
pipelines and other types of
distributed systems, a limited number
of telephones per location have to be
connected to a PBX.
OTN offers a cost effective
solution compared with common
multiplexer equipment, especially if
also the data and LAN capabilities
of the OTN system are used.
• Replacement of key systems
Many larger organizations have
departments in separate buildings.
If the distance to the main PBX
is too large, and the number of
telephones is too small to justify a
local PBX, this is often solved with a
key system, which does not support
full feature transparency. OTN with
its analog voice cards provides a
better alternative in this situation.
Other application fields are Public
Address, emergency telephones,
dial up modems, etc.
emergency telephones play a
vital role and their functioning
must be ensured.
The transparent channels of
the 2W/4W-EM module allow
the connection of emergency
equipment performing constant
tests on the proper functioning
of the emergency telephones.
• PA systems
The 2W/4W-EM module can be used
in a Public Address configuration
with a limited voice quality of 3400
Hz. Such a configuration typically
consists of a PBX from which
the PA messages are initiated,
an OTN system equipped with
4-wire voice cards, amplifiers and
loudspeakers. The voice part of
the 2W/4W-EM module is used to
transmit the speech information.
The signaling part can be used to
turn the remote amplifiers on and off.
Specifications
The 2LVOI-P and 2LVOI-T modules are compatible with
the 12LVOI-P and -T interface cards (FB-52450-A and
FB-52449-A), with the exception of metering. Connections
can be set up between e.g. a 12LVOI-T interface card and
a UNIVOICE card equipped with a 2LVOI-P module.
• Radio modem transmission
The 2W/4W-EM module can be
applied to connect radio base
stations to the radio exchange over
a long distance. This requirement
is often encountered in the railway
environment. The voice part of
the card is used to transmit the
speech information. The signaling
part is used to transmit basic
radio signaling information such
as “ON/OFF”, “squelch”, etc.
Reliability (MTBF) at 25°C (77°F)
UNIVOICE card
30 years (= 3805 FITs)
2LVOI-P module
150 years (= 761 FITs)
2LVOI-T module
130 years (= 878 FITs)
2W/4W-EM module
200 years (= 570 FITs)
2LVOI-P and -T Modules
Attenuation/gain
0 dB on OTN
Compatibility
ITU-T G.712
CE marking
EMC directive 2004/108/EC
LVD directive 2006/95/EC
Loop resistance
1200 Ω including telephone
Digital coding
Circuits
8 per UNIVOICE card
(= 2 per plug-on module)
Pulse Code Modulation
2W/4W-EM Module
Impedance
600 Ω
Bandwidth OTN
96 kbps per circuit
Noise level
< -57 dBm
UNIVOICE with 2W/4W-EM module(s)
• PBX networks
The two most commonly used
ways to connect PBXs are 2 Mbps
links and 4-Wire tie lines. 2 Mbps
links provide high capacity PBX
interconnections. This type of
connection usually offers extensive
signaling capabilities. 4-wire E&M
tie lines are very well suited when
traffic between PBXs is low and
when basic signaling is sufficient.
• Emergency telephones
In many installations (metros,
roads, chemical plants, etc.),
Connectors
One 50 pin female Champ connector
for voice and one for signaling.
Status information
Card active/inactive
Card type
Module Identification
Firmware Version
Bandwidth Enable
Status Valid
Card Error (initialization failed, -48 V
availability, ringing current availability)
2LVOI-T module: ON/OFF Hook
2LVOI-P module:
Loop Closed/Open
2W/4W-EM module:
E&M status
UNIVOICE Card Size
Double Eurocard
200 x 233.4 mm
Weight
UNIVOICE card
2LVOI-P module
2LVOI-T module
2W/4W-EM module
Approx 190 g
Approx 40 g
Approx. 40 g
Approx. 40 g
Crosstalk
< -60 dB
(paths on the same circuits)
< -70 dB
(paths on different circuits)
Signaling
E
M
E&M
to ground or voltage
free contact detection
(E, E1)
to ground or voltage
free contact, normally
open or normally
closed (M,M1)
Supporting Type I and Type II Signaling
Solid state relays
Voltage
max. 56 V
Current
max. 100 mA
Closed resistance
max. 16 Ω
Open resistance
min. 108 Ω
Disruptive voltage between M leads
and control logic
min. 3750 V
Cable Length to Device
Solid Conductor ∅ 0.6 mm 1000 m