diavox courier 700, digital system telephone for md 110 data

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Fig. 8 Data circuit terminating equipment DCE-S Single button access The majority of terminal users work towards a small number of computer applications. These users can utilize the telephony facility "single button access". The same group of computer entries can be called using several single button access addresses, corresponding to the program applications in the computer. The terminal user can program the addresses of the commonmost data applications. Each such internal or external address is assigned its own function field on the digital system telephone and on DCE-S. Abbreviated dialling When more single button access addresses are needed than those for which the selected digital system telephone has been prepared, the abbreviated dialling facility can be used. Each terminal user can define an abbreviated number series for internal and external addresses. Manual dialling The pushbutton unit can be used to dial the numbers of occasional addresses. Automatic call re-establishment There is an automatic supervision function for data units which lack the call initiation function in the interface and are not supervised manually. If an established connection is inadvertently disconnected this will be detected and an attempt is made automatically to establish a new connection to a predetermined answering position. Automatic answer The automatic answering facility in MD 110 can be used for units such as printers, memory banks and computers that cannot automatically answer calls. Group hunting This facility permits calls to be made to a number that is served by two or more switch exits. MD 110 offers several different methods for distributing the calls towards the switch exits. Data line It is possible to switch an established voice connection to a data connection by pressing a facility button. This can be appropriate when the A extension wishes to learn the data speed of the receiver, the B extension, in order to attain compatibility or during external calls to request the B subscriber in the public network to switch in a modem or, if the modem has the automatic answer function, to verify that the B side functions. Fig. 9 Modem pool
Fig. 10 Overview showing MD 110 applications DCE-S Unit for direct connection of terminal to MO 110 FEP Front end processor HOST Host computer PAD Packet assembly and disassembly X.21, X.25 Transmission protocol recommended by CCITT Traffic recording Information about established connections can be supplied in reports with different sorting concepts. Application fields The possibility to connect data terminals to MD 110 provides the company and the individual user with numerous advantages. An example of this is the improved control and administration of the company's data connections provided by the functions of MD 110 Even if each company's data communication frequently needs to have an individual character a number of requirements exist that are common to most companies. The realization in MD 110 of some of these is described below. Terminal network It is anticipated that the number of employees working with their own individual VDU terminals will increase by approximately 25% annually. With MD 110 the opportunity arises to effectively connect inexpensive, character-oriented asynchronous or synchronous terminals. Via the PABX network for voice and data the user can gain contact with the desired internal or external computer systems, fig. 10. The transparent data communications in MD 110 can be expanded to incorporate conversion functions. It is possible from start/stop terminals to emulate 3270 protocol for connection towards IBM's communications computers. Electronic mail Modernization of public networks for text processing also increases the demands for internal text communications. Fig. 11 shows how a text communication system for telex and teletex can be connected to MD 110. The terminal users can write in and fetch messages from the text communication system via established connections. This type of traffic is characterized by short messages with relatively long intervals, i.e. the line concentration is highly effective. Fig. 11 Electronic mail
Page 1: ERICSSON REVIEW 2 1982 DIAVOX COURI
Page 4 and 5: DIAVOX Courier 700, Digital System
Page 6 and 7: Fig. 4 Principle for burst signalli
Page 8 and 9: New traffic facilities Triple acces
Page 10 and 11: 64 Fig. 18 Single button access fac
Page 12 and 13: special handling and supervision of
Page 14 and 15: LARS BOMAN ELLEMTEL Utveckling AB G
Page 18 and 19: 72 The heavy traffic into the depar
Page 20 and 21: 74 Operation and maintenance Data c
Page 22 and 23: MINI-LINK 15 Sivert Bergman and Ken
Page 24 and 25: 78 Fig. 4 The frequency unit The FM
Page 26 and 27: Fig. 9 The probability of transmiss
Page 28 and 29: AXB 30 - A Public Data Network Syst
Page 30 and 31: Fact Panel no. 1 Data format 8+2 an
Page 32 and 33: 86 DSE carries out the following tr
Page 34 and 35: Fig. 7 Magnetic tape units for char
Page 36 and 37: Fact Panel no. 3 System data for AX
Page 38 and 39: MATS ENEBORG ORJAN MATTSSON Fibre o
Page 40 and 41: Line terminating magazine I Remote
Page 42 and 43: Fig. 11 Oscilloscope picture of the
Page 44 and 45: Fig. 16 Acceptable input jitter as
Page 46 and 47: CCITT Signalling System No. 7 in AX
Page 48 and 49: Fig. 4 Message handling Message rou
Page 50 and 51: Fig. 8 Alternative signalling metho
Page 52 and 53: Optical Transmission Link in ATC Sy
Page 54 and 55: Fig. 3 A block diagram of optical f
Page 56 and 57: 2 Fig. 8 A bracket holds the cable
Page 58 and 59: Trial routes and evaluation Trial r
Page 60 and 61: Technical data for the fibre cable
Page 62: 116 Fig. 4 Block diagram of the sim

diavox courier 700, digital system telephone for md 110 data

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