Interface Converters
To use existing services with cost-effective, there are so many interface converters that existing Systems can work with new systems. For the existing classical old systems there are SDH equipments that are giving E1 interfaces over Fiber Optic cables. You have only E1 interface but you need Ethernet services, Voice services(E&M, FXS, FXO), low speed data services like Async RS232, Sync V.35…etc
E1 – V35 converter
Standards of data communications are uniformed. But multiple standards are sometimes created to the same purpose, how to ensure communication between equipment from different vendors. Interface Converter can meet this requirement, for example, V.35, E1 have little function difference, but they are different in electrical and physical characteristics. RC903/4-
V35FE1 is Interface Converter between V.35 and E1 interface with selectable data rate of n*64k and transmit timing source. Error detection procedures are supported by loop-back function. It provides a solution of remote connection of routers, and it’s a common equipment in WAN.
RC903 and RC904 Features:
Provide one DCE interface of V.35 synchronous data complies with ITU
Provide one E1 interface (120ohm balanced E1 interface is optional and supporting
long haul transmission distance of E1 can up to 1.8km) complies with ITU-T G.703
Utilize ITU-T G.704 frame format to adjust the bandwidth of V.35 interface
Provide local and remote alarm indication of E1 link
Provide local and remote loop-back function, it is convenient to judge the state of error bit
Support both E1 framed format and unframed format, time-slots can be distributed random in fractional mode
Provide three kinds of clock mode: internal clock, line clock and V.35 terminal clock
The remote device can detect the local device automatically to synchronize time slot confi guration when the devices are used in pairs in fractional mode
Built-in Error Bit Tester, it can cooperate with various loop-back mode to realize diagnosing and test of link
PCM30/PCM31 is optional and CRC4 check function is auto-sensing in fractional mode
Provide adjusting function of V.35 receiving data phase
Provide fault propagation function, and the line fault can be tested from the V35 interface
SNMP management via slide-in modular agent in the chassis
The module can be plugged into RC001-1,RC001/002-4 and RC002-16 chassis
Ethernet over E1 Converter
At the Transmission systems, there are E1 interfaces that work on fiber cable. At these SDH-Transmission systems so many applications need to use different interfaces like V.35. At SDH E1 interfaces, if you want to use Ethernet connection you must use E1-Ethernet converters.
Raisecom RC951, RC953, RC959 devices can be used for these applications:
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RC951E-4FEE1 Single E1 EoPDH Remote Gateway RC951E-4FEE1 is a single E1 EoPDH remote gateway and also an intelligent Ethernet Demarcation Devices (EDD). The device offers 4 FE downlink ports and 1 E1 uplink, and can be deployed in either a point-to-point topology or a point-to-multipoint topology. HDLC/GFP encapsulation configurable gives the device more flexibility as a CPE. Moreover, as a Raisecom EDD, RC951E-4FEE1 is not only capable of Ethernet switching, but is inherently good at network diagnostics. With standard OAM and CFM, the network administrators are provided with tools to keep the service channel effective. RC951E-4FEE1 can be managed via local/remote CLI, in-band web-based management, and can also be monitored and managed in a centralized way on the GUI of Raisecom NView NNM system. |
| Highlights | |
| Topology Flexibility | Fits in both point-to-point and point-to-multipoint EoPDH solution |
| Standard GFP | makes the device capable of working with other EoPDH device adopt stand GFP encapsulation |
| Demarcation Feature | Advanced Ethernet diagnostics tools standard OAM and CFM available on the device |
| Easy Management | Management via local/remote CLI, in-band web-based management, and SNMP |
RC953-4FExE1T1 series Ethernet Demarcation Devices
Raisecom RC953-4FExE1T1 series are intelligent Ethernet Demarcation Devices (EDD). The devices are typically owned by carriers/service providers, but are working at the border of customer’s network and carrier’s network and provding a clear demarcation point between the two.
A device of RC953-4FExE1T1 series offers 4 FE downlink ports and 4/8 E1/T1 uplinks. Customized Ethernet service traffic will be transmitted over carrier owned PDH network to the Ethernet aggregator working at the POP site.
Raisecom EDD is not only capable of doing what a layer-2 switch is capable of on Ethernet switching, but is inherently good at network diagnostics as a device working on the border. With IEEE802.1ag, the network administrators from the carrier are provided with a tool of Ethernet debug. The device can be either deployed in a point to point topology, or in a point to multi-point topology as CPEs. HDLC/GFP encapsulation configurable makes the RC953-4FExE1T1 series of devices be capable of working with both Raisecom RC953E series or RC959 series Ethernet aggregators.
Apart from local CLI management, RC953-4FExE1T1 series are also available with inband web-based management, and can further be monitored in a centralized
RC953E-3FE16E1 Fast Ethernet Aggregation Gateway
RC953E-3FE16E1 is a Fast Ethernet over E1 or bonded E1 aggregation gateway performing a seamless Ethernet access for customers over existing TDM network. It is typically deployed in central office, aggregating up to 16 E1 circuits which deliver Ethernet services from remote sites. RC953E-3FE16E1 is composed of 2 EoPDH units. Both of them are 1 Fast Ethernet over 8 E1 inverse multiplexing unit. The device is able to aggregate Ethernet service bandwidth from 2Mbps to 16Mbps. Remote Ethernet services are aggregated and transmitted to packet switching network through its Fast Ethernet interfaces. VLAN switching function of RC953E- 3FE16E1 permits packets with specific VLAN ID to be forwarded while isolate others. By supporting 802.1Q VLAN and Q-in-Q, different traffic profiles for different VLAN domains are available.
RC953E-3FE16E1 can be managed via SNMP/Telnet/CONSOLE, meanwhile the remote Raisecom HDLC encapsulation based EoPDH devices such as RC952, RC953 and RC954 series can be remotely discovered by the central RC953E-3FE16E1. Both the aggregation gateway and its remotes can be monitored and network managed on the GUI of Raisecom NView NNM system.
Features:
| Working Mode |
Single E1 mode: working with single E1 interface converters Inverse multiplexing mode: working with 4/8 E1 inverse multiplexers |
| E1 Interface | 16 E1 interfaces, balanced (RJ-45) and unbalanced (BNC) version available |
| E1 Framed mode |
When working in single E1 mode: Unframed or Framed When working in inverse multiplexing mode: Framed Framed mode: PCM31, FAS+CRC4, auto CRC check configurable |
| EoPDH |
HDLC encapsulation 2 units of FE over 8E1 inverse multiplexing 16 VCG; aggregate at most 16 remote sites At most 8 E1 members in 1 VCG, maximum 16Mbps for one customer; Automatic link establishment and adjustment Latency between E1 members: ±16ms |
| Switch Port |
19 switch ports corresponding to 16 VCG and 3 external Fast Ethernet ports Switch port work mode: acces, trunk, hybrid, tunnel |
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Ethernet Switching Function |
MAC address table management, 8192 enties MAC address table VLAN tagging and stacking QoS, 4 queues, CoS-based, sp and wrr queue scheduling Link aggregation Port mirroring Rate limit on both ingress and egress direction Storm control of broadcast, multicast and dlf frames MTU up to 1632 Bytes |
| ALS | Supported on FX port |
| Diagnostics |
E1 loopback test Inbuilt BER tester LOS, LOF, AIS, CRC and GID alarm indication for both local and remote E1 Switch port loopback detection |
| In-band Management | Remote converters can be automatically discovered by the aggregation gateway, and be monitored and managed through it |
| CLI Management | Full CLI management via CONSOLE or Telnet |
| GUI Management | Full management on the GUI of Raisecom NView NNM system, covers local aggregation gateway and all connected remote converters |
| Upgrade | Support local and remote on-line upgrade through FTP/TFTP |
RC959-4FE16E1 Ethernet over 16 E1 Inverse Multiplexer
RC959-4FE16E1 is an inverse multiplexer that transmits Fast Ethernet service over bonded E1 circuits. The device is typically deployed in pair, and can deliver 2~32Mbps Ethernet service according to customers’ requirements. Designed following the standard GFP EoPDH encapsulation, the device supports LCAS, with which the service channel established by the pair of device will not be down even if unstable or broken-down E1 links exists in the TDM network.
RC959-4FE16E1 provides 16 VCG, which allows carriers and service providers to access multiple users and provision service channel bandwidth conveniently.
The device has three working mode: VLAN unaware mode, VLAN aware mode and Q-in-Q mode. When working in VLAN unaware mode, the device will forward any packets received. When working in VLAN aware mode or Q-in-Q mode, the device will forward received packets according the pre-set forwarding rules based on VLAN tags.
RC959-4FE16E1 supports various diagnostic tools such as local and remote E1 loopback, E1 BER testing, loopback detection, and etc. The pair of RC959-4FE16E1 can also be fully monitored and managed on the GUI of Raisecom NView NNM system. All this tools provide ways of quick fault isolation, which will help save time and cost of carriers and service providers.
Feature:
| E1 port | framed mode, PCM31 with FAS+CRC4, auto CRC configurable |
| FE port | 3 FE ports with RJ-45 connector, 1 SFP slot for FX |
| VCAT | ITU-T G.7043, byte interleaving in Ethernet to VCG encapsulation |
| LCAS | ITU-T G.7042, E1 circuit order auto sensing, latency between E1 members ±256ms |
| GFP-F | ITU-T G.7041 & G.8040, FCS configurable |
| Working mode |
VLAN unaware mode: user traffic is transparently forwarded by MAC address VLAN aware mode: user traffic is forwarded by CVLAN tags Q-in-Q mode: user traffic is forwarded by SVLAN tags regardless of CVLAN tags |
| MTU | up to 9000 Bytes |
| Fault propagation | Fault pass through from E1/VCG to Fast Ethernet port |
| Diagnostics |
E1 internal/external loopback test Inbuilt BER tester E1 loopback detection VCG loopback detection |
| Statistics monitoring |
E1 port statistic VCG statistic Fast Ethernet port statistic |
| ALS | Support on FX port |
| Power supply redundancy | Two power supply connectors for AC or DC power supply |
| Firmware upgrade | Local and remote online upgrade through FTP |
| CLI management | Full CLI management via local CONSOLE or Telnet |
| GUI management | Full GUI management on NView NNM system that covers both local and remote devices |
| In-band remote management | When two RC959-4FE16E1 are deployed point-to-point, the remote one can be discovered and managed on both CLI and the GUI of Raisecom NView NNM system |
E1 over Ethernet Converter
At the new systems, there are Ethernet interfaces that work on fiber cable. At these switch systems so many applications need to use different interfaces like V.35. At SDH E1 interfaces, if you want to use E1 connection you must use E1 over Ethernet converters.
Raisecom RC1201 devices can be used for these applications:
RC1201-2FEE1T1 TDMoverIP Access Gateway 1xE1 over Ethernet Network
RC1201-2FEE1T1 is a TDMoverIP Access gateway device for enterprises and mobile
operators, offering TDM lease line extension or TDM traffic backhaul over a packet switched network. It provides a legacy over Ethernet/IP solution supporting transmission of E1/T1 streams over IP and Ethernet-based networks.
RC1201-2FEE1T1 is integrated with one E1/T1 and 2 local Ethernet traffic ports which can be configured from 2 10/100BaseT and 1 1000BaseX port. It converts data streams from
its E1/T1 ports into packets for transmission over the packet switching network such
as MPLS and Ethernet network. RC1201 TDMoverIP devices are working in pairs.
RC1201-4FE4E1T1 TDMoverIP Access Gateway 4xE1 over Ethernet Network
RC1201-4FE4E1T1 is a TDMoverIP Access gateway device for enterprises and mobile
operators, offering TDM lease line extension or TDM traffic backhaul over a packet switched network. It provides a legacy over Ethernet/IP solution supporting transmission of E1/T1 treams over IP and Ethernet-based networks.
RC1201-4FE4E1T1 is integrated with 4 E1/T1 and 4 local Ethernet traffic ports which can be configured from 4 10/100BaseT and 11000BaseX port. It converts data streams from
its E1/T1 ports into packets for transmission over the packet switching network such
as MPLS and Ethernet network. RC1201 TDMoverIP devices are working in pairs.
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RC1201-2GE16E1T1 TDMoverIP Access Gateway 16xE1 over Ethernet Network offering TDM lease line extension or TDM traffic backhaul over a packet switched network. It provides a legacy service over Ethernet/IP solution supporting transmission of E1/T1 streams over Packet Switching Networks. RC1201-2GE16E1T1 is integrated with 16 x E1/T1 interfaces, 2 x GE ports and two expansion slots for 4/8 x GE ports and clock signal input/output. It is designed to act as the TDM over IP aggregation gateway at the central office, aggregating TDM over IP traffics from remote sites. It converts legacy TDM service from 16 E1/T1 ports into packets for transmission over the packet switching network such as MPLS, IP, and Ethernet network.
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RC862-30/30-BL Modular Fiber Modem RC862-30/30-BL is a modular fiber modem which provides one optical fiber for uplink and one E1 port for client access. RC862-30/30-BL can be local/remotely managed and has local/remote alarm indicators on front panel. Local/remote E1-loopback function and remote device power-off alarm benefit fault detection and troubleshooting. Typically, we deploy RC862-30/30-BLin pair or deploy it against other RC86x fiber modem. Being inserted in RC002 series chassis with SNMP management, both local and remote device can be managed on GUI based Raisecom NView NNM system. |
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Highlights |
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Front panel LED |
Showing device operation/alarm status on front panel for convenient monitoring |
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Effective fault location |
E1-loopback function and remote device power-off alarm benefit fault location |
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Easy Management |
Local /remote managed via SNMP on Nview NNM |
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RCMS2902-2E1GE-BL Multi-Service FiberMUX RCMS2902-2E1GE-BL is a modular Multi-Service FiberMUX, which provides 1 optical fiber for uplink, and 2 E1 plus 1 GE for client access. RCMS2902-2E1GE-BL has local/remote alarm indicators on front panel. Local/remote loop-back function benefits link fault detection and troubleshooting. And being inserted in manageable chassis it can be SNMP managed through NView NNM to realize monitor and configuration. The classical topology of RCMS2902-2E1GE-BL is point-to-point application with another RCMS2902 insert into RC001-1 chassis. Both local and remote side equipment can be managed through network management software NView NNM. |
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Highlights |
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Multi-Service |
Provide 2 E1 plus 1 GE on client side |
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Compact Structure |
Modular device can be inserted in RC002-16 chassis or RC001-1M for SNMP management |
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Easy Management |
Local and remote managed via SNMP on Nview NNM
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