Description
BD-24E1-GE-CON is a Gigabit Ethernet aggregator with inverse multiplexing and VLAN TAG function; it provides three gigabit Ethernet interfaces (2 electrical and 1 optical Ethernet interfaces) compliant with IEEE 802.3 series standard and up to 24 E1 interfaces.
Overview
BD-24E1-GE-CON is a Gigabit Ethernet aggregator with inverse multiplexing and VLAN TAG function; it provides three gigabit Ethernet interfaces (2 electrical and 1 optical Ethernet interfaces) compliant with IEEE 802.3 series standard and up to 24 E1 interfaces. It can separate the Ethernet data from GE port (the carried VLAN Tag correspond to different VCG channels), encapsulate them into EoPDH signal, and then into E1 signal; in the opposite direction, it can de-map the Ethernet data from E1 signal, aggregate them into GE port. BD-24E1-GE-CON supports 16 VCG channels, and each VCG channel can be configured to work in single E1 mode or Multi-E1 conversion mode independently, In single E1 conversion mode, each channel bandwidth is one E1; In multi-E1 conversion mode, the maximum bandwidth of each channel is 16 E1.BD-24E1-GE-CON can be used in the traffic convergent network, supports point-to-multipoint application; it supports NE management based on simple CLI command via RS232 type; meanwhile, it supports SNMP_V1 and SNMP_V2 protocol, supports network management platform NetView based on C/S architecture, which is easy for device configuration, management and maintenance.With EoPDH (Ethernet over PDH) technology compliant to ITU-T G.7041, G.7042, G.7043 and G.8040 standards, BD-24E1-GE-CON can communicate with products from other vendors adopting the same standards.
Features
- Compact design with 1U height, 19 inch, 205mm depth, and can be installed on standard rack
- E1 interface
- Provides 8/16/24 E1 interfaces, compliant to G.703, and balanced/unbalanced selectable
- Jitter tolerance, jitter transfer characteristic and jitter generation fully comply with ITU-T G.823 and G.742 recommendations
- Supports E1 line loop and device loop
- Supports E1 BERT function
- Ethernet interface
- One fiber gigabit Ethernet interface and two copper gigabit Ethernet interfaces compliant with IEEE802.3 serial standard;
- The copper gigabit Ethernet interfaces adopt RJ45 connector, support auto-negotiation, which can work in 1000M full-duplex, 100M full/half-duplex, 10M full/half-duplex mode;
- The fiber gigabit Ethernet interface adopts 1.25G SFP module, which can work in 1000M full-duplex mode, transmission distance is optional (depend on the SFP optical module);
- Proprietary technique (patent pending) adopted to prevent Ethernet frames from looping back in case of unexpected transmission line loopback;
- Supports unicast, multicast and broadcast frame;
- Supports flow control and broadcast storm filtering control;
- 4K MAC address table, with optional 12s / 300s ageing time configurable, the default is 300s;
- Supports MAC address dynamic learning function;
- Accepts frames with length between 64 and 1552 bytes (otherwise filtering);
- Supports port-based VLAN and IEEE802.1Q tag-based VLAN;
- Supports up to 30 VLAN table
- Provides performance statistic for each Ethernet interface;
- Supports QinQ(Double Tag VLAN);
- Supports port rate control for LAN port
- Ethernet encapsulation
- In single E1 mode, it supports GFP-F encapsulation compatible with ITU-T G.7041 recommendation and HDLC encapsulation compatible with RJ017, under HDLC encapsulation, it supports framed PCM31/ unframed mode;
- In Multi-E1 conversion mode, it supports GFP-F encapsulation;
- Communication with remote equipment
- In single E1 mode, it supports communication with the remote BD-FE1-ETH converter and the equipment adopted the same Ethernet encapsulation from other vendor;
- In Multi-E1 conversion mode, it can communicate with the remote SEOP series, and the equipment adopted the same Ethernet encapsulation from other vendor ;
- Compliant to ITU-T standards
- GFP-F encapsulation , compatible with ITU-T G.7041 recommendation;
- Virtual concatenation (VCAT) and Link Capacity Adjustment Scheme (LCAS) recommendation G.7042;
- Ethernet to nxE1 mapping recommendation G.7043;
- Ethernet to single E1 mapping recommendation G.8040;
- NE Management
- Supports Simple Network Management Protocol (SNMP), compatible with V1 and V2C protocol;
- Supports FTP protocol and firmware download online without disturbance of existing traffic;
- Monitoring the alarms and status in real-time;
- Supports hot-spare power, the power consumption is less than 20W
- -48V DC single power access;
- -48V DC double power access;
- 220V AC single power access;
- 220V AC double power access;
- -48V DC+220V AC double power access.
Equipment View
The BD-24E1-GE-CON equipment is of compact structure, with 19 inch and 1U height subrack.
Figure Equipment 3D View
3.2Front Panel
Front Panel
Figure Front Panel
Rear Panel
Figure Rear Panel
Specification
Technical Specification
Table Ethernet optical parameters (dual fiber, 15Km)
| Subject | Description |
| Bit rate | 1.25Gb/s |
| Connector | SFP optical module |
| Wavelength | 1310nm |
| Optical power | -3～-9dBm |
| Overload input optical power | -3dBm |
| Receiving sensitivity | Better than -22dBm |
| Dynamic range | Larger than 14dB |
| Transmission distance | 15Km |
| Standard | SFP MSA（INF-8074i, ITU-T G.695, FC-PI V2.0, IEEE802.3z 1000Base-LX/SX standard |
Table Ethernet optical parameters (dual fiber, 30Km)
| Subject | Description |
| Bit rate | 1.25Gb/s |
| Connector | SFP optical module |
| Wavelength | 1310nm |
| Optical power | -3～-8dBm |
| Overload input optical power | -3dBm |
| Receiving sensitivity | Better than -22dBm |
| Dynamic range | Larger than 14dB |
| Transmission distance | 30Km |
| Standard | SFP MSA（INF-8074i, ITU-T G.695, FC-PI V2.0, IEEE802.3z 1000Base-LX/SX standard |
Table Optical parameters (dual fiber, 80Km)
| Subject | Description |
| Bit rate | 1.25Gb/s |
| Connector | SFP optical module |
| Wavelength | 1550nm |
| Optical power | 0～5dBm |
| Overload input optical power | -3dBm |
| Receiving sensitivity | Better than -24dBm |
| Dynamic range | Larger than 24dB |
| Transmission distance | 80Km |
| Standard | SFP MSA（INF-8074i, ITU-T G.695, FC-PI V2.0, IEEE802.3z 1000Base-LX/SX standard |
Table Optical parameters (dual fiber, 120Km)
| Subject | Description |
| Bit rate | 1.25Gb/s |
| Connector | SFP optical module |
| Wavelength | 1550nm |
| Optical power | 0～5dBm |
| Overload input optical power | -9dBm |
| Receiving sensitivity | Better than -31dBm |
| Dynamic range | Larger than 31dB |
| Transmission distance | 120Km |
| Standard | SFP MSA（INF-8074i, ITU-T G.695, FC-PI V2.0, IEEE802.3z 1000Base-LX/SX standard |
Table Optical parameters (single fiber, 15Km)
| Subject | Description |
| Bit rate | 1.25Gb/s |
| Connector | SFP optical module |
| Wavelength | 1550nm/1310nm |
| Optical power | -10～-3dBm |
| Overload input optical power | -3dBm |
| Receiving sensitivity | Better than -22dBm |
| Dynamic range | Larger than 13dB |
| Transmission distance | 15KM |
| Standard | SFP MSA（INF-8074i, ITU-T G.695, FC-PI V2.0, IEEE802.3z 1000Base-LX/SX standard |
Note：
- The overload input optical power requirement must be obeyed ; otherwise the optical module may be damaged!
- The SFP optical module is optional for users, and the parameters above is just anreference value;if users select the SFP module supplied by us, the parameters of the SFP module is as the above tables shows; if users purchase other types of SFP optical module by themselves, the parameters may be different.
Table Electrical Ethernet Interface
| Subject | Description |
| Speed | 10/100/1000M |
| Connector | RJ-45 |
| Standard | IEEE802.3ab 1000Base-T
/IEEE802.3u 100Base-TX / IEEE802.3 10Base-T |
| Bandwidth | in default, the bandwidth is not allocated |
Table Ethernet Parameters
| Subject | Description |
| MAC address Table | 4K |
| Minim frame length | 64 bytes |
| Maximum frame length | Configured by management software , the default is 1552 bytes |
| MAC address Table aging time | Default:5 minuets |
| Work mode | Supports auto-negotiation mode and forced mode. The default is auto-negotiation mode |
| Flow control | Default: enabled |
Table RS232 network management interface (CONSOLE)
| Subject | Description |
| Baud rate | 19200 |
| bits | 8 |
| Stop bit | 1 |
| parity check | None |
| Electricity level | EIA-RS232 standard |
| Connector | RJ45 |
Table Power supply
| Subject | Description |
| Input DC voltage | -36～-72V DC |
| Input AC voltage | 85～264V AC |
Table Dimensions
| Subject | Description |
| Dimension | 434mm×44mm×205mm（width × height × depth） |
| Power consumption | 12W±10％ |
Table Environment requirements
| Subject | Description |
| Working temperature | -5℃～50℃ |
| Storage temperature | -40℃～70℃ |
| Relative Humidity | ≤95％, no condensation |
Order information
| Type | Specification | Description | Remarks | |
| chassis | BD-24E1-GE-CON chassis | 1U height, 19inch, two FAN, | Required | |
| E1 card | CLIU8 card | DB37F-BNC-8E1 cable adapter | 8-unbalanced E1 card, 75ohm provide BNC interface by the cable adapter | Required |
| CLIUB8-B card | – | 8-balanced E1 card, 120ohm, RJ48C interface | Required | |
| 1.25G SFP optical module | 2 15Km, 1310nm
2 30Km, 1310nm 2 80Km, 1550nm 2 120Km, 1550nm 2 single fiber, 1550/ 1310 nm , 15Km |
1.25G SFP optical module | Optional | |
| AC Power module | 220V AC power card | 220V | Optional | |
| DC Power module | -48V DC | -48V DC | Optional | |
Application
Typical Application
BD-24E1-GE-CON supports point-to-multipoint network application; the remote can be EOP series, FE1-ETH equipment, to meet the various bandwidth requirements. Each BD-24E1-GE-CON supports 24 E1s and 16 VCG channels at most. In the application, the Ethernet service of each remote user can be carried by different VCG channels, each VCG can be assigned to 1~16 E1 flexibility and the total bandwidth of the 16 VCG channels cannot be exceeds 24E1s.
In addition, EOP4/8/16 series is a 3FE+1FX or 4FE converter with one VCG channel and 4/8/16 E1, supports SNMP and CLI management;
As shown in Figure3-1, with EoPDH and VLAN technology, the remote Ethernet service can be transmitted and converged into the service center (Router) by BD-24E1-GE-CON; BD-24E1-GE-CON also supports E1 management channel, the remote Ethernet management data can be transmitted by the E1 management channel and then converged into the local BD-24E1-GE-CON, thus all the management information can be controlled by the local NMS.
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