Raisecom RC801-30B-FV35-M, User Manual

Page 1: ...Raisecom Technology Co Ltd http www raisecom com 1 RC801 30B FV35 RC803 30B FV35 RC805 30B FV35 Series Standalone N 64K V 35 Interface Fiber Optic Modem User Manual 20041008 Raisecom Technology Co Ltd ...

Page 2: ...Terminal Clock Slave Clock Topology 7 2 3 EXTENDED CONNECTION TYPE 7 CHAPTER 3 PREPARATION 8 3 1 DESCRIPTION OF THE FRONT AND BACK PANEL 9 3 1 1 Definition of the Indicators 9 3 1 2 Fiber Optic Interface 10 3 13 LOOP SW loop back setting switch 10 3 1 5 V 35 DCE Interface 11 3 2 DIP SWITCH SW1 SETUP ON THE BOTTOM PANEL 11 3 2 1 The 1st 5th Bit V 35 Interface Bandwidth Setup 12 3 2 2 The 6th Bit V ...

Page 3: ...elation of the transmitting receiving data and clock of the V 35 interface could be chosen according to different brands of Router requirement z When E1 is in the transparent mode the bandwidth of V 35 interface is 2048Kbps z When E1 is in the fractional mode the bandwidth of V 35 interface could be set to N 64Kbps N 1 31 z When E1 is in the fractional mode and works in pairs E1 interface could ha...

Page 4: ...550nm Distance See the description Optical Transmission of dual strand fiber Transmit power 5 dBm Receiving sensitivity 35 dBm Transmit Wavelength 1310nm Distance See the description 1 3 2 E1 Data Channel Bit rate 2048Kbps 50ppm Frame structure Complies with ITU T G 704 suggestion Gitter Complies with ITU T G 823 suggestion Function Characteristics Complete wire warning indicator fault pass throug...

Page 5: ...0 and No 16 timeslots are taken up by the system N shall be counted from No 1 timeslot and No 16 timeslot shall be skipped if N is larger than 16 TS 1 TS 31 V 35 BANWIDTH TS N 1 TS 0 TS 16 1 3 5 Power Supply Power Supply DC 48V tolerance range from 36V to 72V DC 24V tolerance range from 18 to 36V AC 220V tolerance range from 165V to 265V Power Consumption 5W 1 3 6 Ambience Working Temperature 0 45...

Page 6: ...ly connected in the E1 link the following requirements shall be noticed 1 PCM30 31 format must be the same 2 The status of CRC enable disable function must be the same 3 The V 35 signal bandwidth engrossment of G 704 frame pattern must match 4 Ensure that there is only one timing resource in the whole link Other PCM equipment shall be configured to Slave Clock Mode following the link clock 2 2 Bas...

Page 7: ...lly connected in the E1 the other equipment should be Slave clock following the E1 line clock 2 3 Extended Connection Type RC801 803 805 30B FV35 cannot be interconnected with other brand name V 35 interface fiber optic modems However users can adopt RC802 30B series E1 fiber optic modem which will convert the optical signals to G 703 compliant E1 electrical signals and then connect with a V 35 to...

Page 8: ...ted to the same ATM has the default Master clock so the clock of this equipment should be adjusted to the Slave clock If deploying E1 interface Router at the remote site RC802 30B E1 fiber optic modem can be adopted at the remote site as the following diagram It is advised that if the Router is set to Master Clock then the RC801 30B FV35 at local site shall be set to Slave Clock Chapter 3 Preparat...

Page 9: ...lashing when loss of frame occurs in receiving optical link ERR Local receiving bit error alarm in optical link yellow Flashing when the bit error rate exceed 10 3 in receiving optical link steady on and refreshes every other 10 20 seconds when the bit error rate exceed 10 6 V35AL Receiving E1 signal error alarm in optical link red When there are AIS Upper E1 signal line warning LOF G 704 frame mi...

Page 10: ...o definition reserved ON ON The local V 35 and optical port can all loop back z This figure of V 35 and optical port all loop back on this equipment At this time the LOOP STATE indicator on the L line of the Local Multiplexer is on at the same time the the LOOP STATE indicator on the R line of the Local Multiplexer is also on z This figure of V 35 and optical port all loop back on the remote equip...

Page 11: ...GND B Receive Data A RD A O R Receive Data B RD B O T Receive Timing A RCK A O V Receive Timing B RCK B O X Send Data A TD A I P Send Data B TD B I S Send Timing A TCK A O Y Send Timing B TCK B O AA Terminal Timing A SCTE A I U Terminal Timing B SCTE B I W Request to Send RTS I C Clear to Send CTS O D Data Set Ready DSR O E Data Carrier Detect DCD O F Data Terminal Ready DTR I H I input O output 3...

Page 12: ...e is 2048kbps when working at transparent E1 mode These 5 bits of the dip switch are actually representing the binary code of the N value When N is configured to 0 RC801 803 805 30B FV35 is working at transparent E1 mode 1st bit 2nd bit 3rd bit 4th bit 5th bit Bandwidth bit s 0 0 0 0 0 2048K transparent E1 mode 0 0 0 0 1 1 64K 64K minimum bandwidth 0 0 0 1 0 2 64K 128K 0 0 0 1 1 3 64K 192K 0 0 1 0...

Page 13: ...lave Control The following conditions shall be satisfied in order to realize the remote bandwidth control function 1 RC801 803 805 30B FV35 series modems are deployed point to point and in pairs 2 There is no PCM equipment i e DXC MUX that takes up the No 0 timeslot in the link 3 Neither of the RC801 30B FV35 at both sides shall be set to transparent mode N is not 0 When all the conditions are met...

Page 14: ...nterface that connected with Master Slave Clock equipment The TX Clock shall be Internal Clock mode and RX Clock shall be External Clock mode at the V 35 interface that connected with Terminal Clock equipment 3 2 4 The Factory Default Setup of SW1 All OFF Switch 1st bit 2nd bit 3rd bit 4th bit 5th bit 6th bit 7th bit 8th bit Default OFF OFF OFF OFF OFF OFF OFF OFF Details N 31 V 35 bandwidth 1984K...

Page 15: ... modem shall be configure to PCM31 N 31 The local and remote sites shall have the same configuration CRC option Disable Enable the CRC function according to the link requirement The local and remote sites shall have the same configuration 3 3 2 The Factory Default Status of SW2 All OFF Switch 1st bit 2nd bit 3rd bit 4th bit Status OFF OFF OFF OFF Definition TX CLK positive RX CLK positive PCM31 CR...

Page 16: ...ata engrossment in frame format Refer to Chapter 1 3 4 for timeslot engrossment and ensure that both equipments have the same configuration 4 After success of the second step or ensure the 3rd step it is indicated that the communication link between local and remote equipments is working properly Now if the remote V 35 interface is connected properly but still cannot communicate normally please ad...

Page 17: ... power supply which is normal phenomenon and it shall be off in 10 seconds If the indicator is steady on during operation please check if the optical interface is connected properly and the receiving optical power Severe packet loss of DTE equipment Answer The possible reasons for severe packet loss are 1 Incorrect timing resource setup 2 Check V 35 interface status of the Router if there are data...

Page 18: ...w raisecom com 18 BROADBAND To RAISECOM Copyright Declaration Raisecom Technology Co Ltd is the owner of this manual booklet The part or whole of this manual is not allowed to reproduce without Raisecom s permission All rights Reserved ...