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E1 Fiber Optic Converter

with Service Channel Interface

LE-820M/1E1 Plus

LE-1300S/1E1 Plus

User’s Manual

Rev. 2.0

LaserBit Communications Corp.
1037 Budapest,Kunigunda u. 45.
HUNGARY
Tel.: +36-1-4537440
Fax: +36-1-2403570
www.laserbitcommunications.com

Содержание LE-1300S/1E1 Plu

Страница 1: ...er with Service Channel Interface LE 820M 1E1 Plus LE 1300S 1E1 Plus User s Manual Rev 2 0 LaserBit Communications Corp 1037 Budapest Kunigunda u 45 HUNGARY Tel 36 1 4537440 Fax 36 1 2403570 www laser...

Страница 2: ...igation on the part of LaserBit Communications Corp to provide notification of such revision or change LaserBit Communications Corp provides this documentation without warranty term or condition of an...

Страница 3: ...States some states do not allow the limitation or exclusion of liability for incidental or consequential damages so the above limitation may not apply to you The purchaser or user shall have the respo...

Страница 4: ...ing convention E1 Plus will be used to cover both models throughout this guide The manual is intended for use by personnel familiar with telecommunication networks consequently it assumes basic knowle...

Страница 5: ...unit internal module arrangement 15 3 3 Configuration Jumpers E1SC MM 15 3 4 Configuration Jumpers E1SC UIM 18 3 5 Service channel configuration settings S1 S2 19 4 Technical specifications 21 5 Port...

Страница 6: ...hen integrating the equipment into an existing system The E1 Plus models are equipped with Service Channel feature which transmits one voice channel one RS 232 channel and 2 x 24 low speed signal bits...

Страница 7: ...ponding interfaces that is E1 to the line interface and service channels to the SC UIM module The SC UIM module decodes the 64 kb s digital data and converts it back to RS 232 serial analogue voice an...

Страница 8: ...k source when the device looses the sync on the E1 side By doing so the service and management communication between the two E1 Plus units is not affected by the sync loss SC IF The Service Channel In...

Страница 9: ...eceives the E1 data and clock and the service channel data multiplexes them into a 2 5 Mbps synchronous data stream This data stream is then encoded for optical transmission and passed to the FO trans...

Страница 10: ...se signals accessible on the rear side of the unit CS2 DB 9 connector for RS 232 connection situated on the front side of the equipment CS3 RJ 11 connector for telephone handset connection placed on t...

Страница 11: ...After changing the position of the switch at the remote side to hook off the buzzer will stop and both LED s change to steady green The voice communication channel is now open The channel can be clos...

Страница 12: ...both can be set up for either serial or parallel operation The not used inputs and outputs can be left un terminated The inputs can be connected to TTL HCMOS compatible source and are protected from s...

Страница 13: ...erface please pay attention to the TX RX directions When the balanced interface is used compare the pinout specification of the E1 Plus unit and the E1 equipment to be connected and use a proper cable...

Страница 14: ...ection Line coding HDB3 Service channel RS 232 interface 9600 8 1 NP Voice port Panasonic handset 3 1 Location of connectors and indicators Figure 4 E1 Plus unit front panel Figure 5 E1 Plus unit rear...

Страница 15: ...3 2 E1 Plus unit internal module arrangement 3 3 Configuration Jumpers E1SC MM PSU E1SC MM E1SC UIM J1 J2 J3 J4 J5 J6 J9 J10 J11 J12 J13 J7 J8 J14 SW1...

Страница 16: ...cuit is placed in the transmit paths of copper side These three jumpers must not be installed together in the same time only one of them E1 line settings J4 J5 J6 J9 J10 J11 J12 75 Ohm balanced operat...

Страница 17: ...Logic GND Signal input is not connected to the logic ground Signal output is connected to the logic ground Use this setting if it is required by the network operator DIP Switch settings SW1 Switch No...

Страница 18: ...guration Jumpers E1SC UIM Power source selector JP2 Locally stabilized voltage 5V Incoming voltage 5V Handset MIC polarity Panasonic type handset Siemens type handset Switch block S1 S2 JP1 JP2 JP2 JP...

Страница 19: ...on OFF Normal mode ON Test mode ClkMaster Receive and Transmit clock source OFF Normal Mode incoming RXC and TXC ON Test Mode internal RXC and TXC Init_on_Error behavior of the signaling bits on ERROR...

Страница 20: ...0 1 600 Baud 0 1 0 1200 Baud 0 1 1 2400 Baud 1 0 0 4800 Baud 1 0 1 9600 Baud 1 1 0 19200 Baud 1 1 1 38400 Baud Parity parity handling on the RS 232 line OFF Parity checking and parity bit generation i...

Страница 21: ...dBm min RX Sensitivity 31 dBm Connector ST multimode 1300 nm single mode TX Power 18 dBm min RX Sensitivity 31 dBm Connector ST single mode Common Digital data stream Type of traffic flow serial sync...

Страница 22: ...TS No flow control Interface DTE Connector DB 9 male Status and control signals 2x24 bits Type of traffic flow serial synchronous duplex parallel Number of data bits 24 Serial data clock 8 kHz Samplin...

Страница 23: ...al Ground 6 DSR Data Set Ready 7 RTS Request To Send 8 CTS Clear To Send 9 RI Ring Indicator Handset RJ 11 Pin Signal Function 1 T_d Handset MIC 2 R_a Handset receiver 3 R_b Handset receiver 4 T_c Han...

Страница 24: ...input TTL 7 BI 11 Status and control input TTL 26 BI 12 Status and control input TTL 8 BI 13 Status and control input TTL 27 BI 14 Status and control input TTL 9 BI 15 Status and control input TTL 28...

Страница 25: ...ontrol input Open Collector 26 BO 12 Status and control input Open Collector 8 BO 13 Status and control input Open Collector 27 BO 14 Status and control input Open Collector 9 BO 15 Status and control...

Страница 26: ...it has lost the sync of the incoming signal on the optical port Re S Loss Remote Sync Loss red this LED indicates that the remote unit is sending Sync Loss Frames which means it has lost the sync on i...

Страница 27: ...indicates that other initialization error happened Loop Loop back indicator yellow this LED lights up when the device is turned into loop back mode Speak Voice channel status indicator green when this...

Страница 28: ...ped In the 1960s digital systems started to appear Here the telephone channels are separated by time using a new type of transmission method known as Pulse Code Modulation PCM The analogue signal spee...

Страница 29: ...the T1 system based on 1544 kbps that is recommended by ANSI and the E1 system based on 2048 kbps that is recommended by ITU T The T1 system is used mainly in the USA Canada and Japan European and cer...

Страница 30: ...nnel bit rate b x d 8000 s x 8 bit 64 kbit s b x d 8000 s x 8 bit 64 kbit s f Encoding decoding Number of segments in characteristic A law 13 law 15 g Number of timeslots per PCM frame 32 24 h Number...

Страница 31: ...PDH transmission rates 64 kb s 1544 kb s 6312 kb s 2048 kb s 8448 kb s 34368 kb s 139264 kb s 564992 kb s 44736 kb s 274176 kb s 32064 kb s 97728 kb s 397200 kb s x 3 x 3 x 30 x 24 x 4 x 4 x 4 x 4 x...

Страница 32: ...3 zeros ISDN Integrated Services Digital Network ITU T International Telecommunication Union Telecommunications Standardization Section MFAS Multiframe Alignment Signal NFAS Not Frame Alignment Signa...

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