Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Open Transport Network (OTN) UNIVOICE INTERFACE CARD WITH 2LVOI-P, 2LVOI-T AND/OR 2W/4W-EM Introduction 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. Description 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 card 2LVOI-P, 2LVOI-T and/or 2W/4W-EM modules can be plugged for the desired voice application(s). 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 compatible 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 8 circuits per UNIVOICE card (2 circuits per plug-on module) For OTN-150/600 and OTN-X3M networks 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. 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.), 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. Compatibility ITU-T G.712 Reliability (MTBF) at 25°C (77°F) UNIVOICE card 31 years 2LVOI-P module 152 years 2LVOI-T module 134 years 2W/4W-EM module 200 years 2LVOI-P and -T Modules Attenuation/gain 0 dB on OTN Loop resistance CE marking EMC directive 2004/108/EC LVD directive 2006/95/EC • 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. 1200 including telephone Digital coding Pulse Code Modulation Circuits 8 per UNIVOICE card (= 2 per plug-on module) 2W/4W-EM Module Impedance 600 Noise level Bandwidth OTN 96 kbps per circuit < -57 dBm Crosstalk < -60 dB (paths on the same circuits) < -70 dB (paths on different circuits) 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 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 Open resistance min. 108 Disruptive voltage between M leads and control logic min. 3750 V Cable Length to Device Solid Conductor 0.6 mm 1000 m PBX2 PBX1 TLH2 2LVOI-T SCADA 2LVOI-T 2LVOI-T 2LVOI-P 2LVOI-T Modem OTN node Emergency System SCADA Modem SCADA TLH1 Modem = Hotline Connection = Administrative Telephone = Emergency Telephone Router 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 • V2.3 and up (OTN-150/600) • V4.0 and up (OTN-X3M) OTN Systems NV Industrielaan 17b, 2250 Olen, Belgium Fax: +32 14 25 20 23 E-mail: [email protected] www.otnsystems.com - www.otn.be Ref. No.: AE-S247-E-10 Issued October, 2011 Specifications subject to change as design improvements are implemented.