16E1＋100M PDH光端机系列产品是通过光纤来远距离传送单路或多路E1业务，它采用了业内领先的技术及专用的超大规模集成电路，并结合专用数字复接芯片开发而成的光传输产品。该类设备支持点到点组网，易于安装维护，配合机箱可实现局端、远端统一网管，可以迅速实现故障定位，在加快故障响应速度的同时，节省了运维成本。
16E1＋100 PDH光端机为PDH光传输系统提供8M的传输容量，接口包括E1、V.35、10/100Base-T。设备电路部分为全数字电路，整机工作可靠、稳定，功耗低，集成度高，体积小，易于安装维护。设备满足电信运营商及专网用户的需求，符合电信标准。适合电力、邮政、银行及联通、移动电信等用户的需要，符合电信运营商使用标准；大规模可编程逻辑器件的设计方式使得该产品的更新换代速度大大超过基于ASIC的传统型光端机，特别适合可靠性要求高的场合。如：移动、联通、电信、电力、公安、军队、公路、航空等专用通讯网；
E1线路支持本端、远端环回测试功能，便于设备开通、检测线路、排除故障点，降低运营商和用户的维护成本；
支持SNMP本地和远端网管，提供强大的网管功能；
光接口支持ALS功能，人性化设计，能够有效地控制非连接状态下光信号的输出，避免强光对调试人员的眼睛造成伤害，给与调试人员最大的保护。可选多模、单模双纤、单模单纤。
提供4路E1接口；提供10/100BaseT接口；
以太网接口速率10M/100M自适应，支持VLAN协议；
提供命令E1对端环回功能，光路本端自环功能；
采用全数字化时钟恢复和平滑锁相技术，可靠性高兼容性好；
完备的电源、链路、告警指示功能，本端设备可实时监控对端设备的当前状态；
提供支路告警和声音告警屏蔽；
提供一路公务电话接口，不占用E1通道，可方便地与对端进行联系；
双纤双向和单纤双向机型可选；
光接口可选SC/PC, FC/PC符合电信级运营要求，平均无故障时间（MTBF）10万小时以上；
具有高可靠性，提供19“机架安装、台置、壁挂、插卡，同时具备交直流供电；
电源可以选择交流220V、直流-48V，整机功耗＜５Ｗ；
提供SNMP网管功能；
技术参数 光接口特性： 光纤类型：单模光纤8.3/125，8.7/125，9/125，10/125；光纤波长：1310nm；光纤接口：FC或SC可选；光路码速：4E1PDH为16.896Mbit/s,4E1 100MPDH为155Mbit/s 光路码型：4E1PDH为1B1H，16.896Mbit/s,4E1 100MPDH为1B2B 光 源：LD；传输距离：大于40km；大于60km 输出光功率：≥-13dBm；接收器类型：PINFET 接收灵敏度：≤-38dBm(BER≤10-11) E1接口特性： 接口码型：HDB3；接口码速：2.048Mbit/s±50ppm 接口特性：ITU-T G.703；接口类型：BNC，RJ45
接口阻抗：75Ω不平衡/120Ω平衡 以太网接口特性：接口速率：10/100自适应； 接口协议：IEEE802.3，IEEE802.3U， IEEE802.1d，IEEE802.1Q；物理接口：RJ45 RS232接口：工作方式：≤19.2Kbit/s 异步串行；
接口类型：RJ-45； | RS232接口 工作方式：≤19.2Kbit/s 异步串行；
接口类型：RJ-45； 电源： 电 压：AC180V~240V；DC-36V~DC-72V DC 20V~DC 36V 功 耗：＜6W 环境： 工作温度：0℃~50℃；贮存温度：-40℃~ 70℃ 相对湿度：5%-95%无冷凝 外形尺寸：482.6mm×200mm×44mm 订购信息 型号：TBC-3120S（4E1＋100M) 传输距离 单模双纤40km；单模单纤40km
光接口类型 F：FC ；S：SC
供电类型： 22：AC180V~AC240V；
48：DC-36V~DC-72V 24：DC 20V~DC 36V |
型号 | 规格说明 |
TBC-6120 | 4E1普通型光端机， |
TBC-6120E | 4E1+100M以太网光端机，含1个公务电话接口， |
TBC-6240 | 8E1普通型光端机，含1个公务电话接口， |
TBC-6240E | 8E1+100M以太网光端机，含1个公务电话接口， |
TBC-6480 | 16E1普通型光端机，含1个公务电话接口， |
TBC-6480E | 16E1以太网光端机，含1个公务电话接口， |
1. Product Description
1.1 Function Description
This model can multiplex to 16 E1 signals for transmission over an optical fiber, resulting in reaching a longer distance without a repeaters and superior performance compared to copper media.
This model is the 16E1 point-to-point optical transport equipment that uses the FPGA chips and it is easy to upgrade. It is single board structure and the largest transmission capacity is 4E1. The outer design use the standard 19 inches rack, so the volume is little, weight is light and operation is convenient and credit.
The multiplexer adopts the PDH fiber transmission technologies. The 2M (E1) interfaces can connect with the exchanger, light loop device and multi-diplexer directly to form the mircomidi or the special network. Complete alarm function for the model, it is stable and easy to maintenance, install and small in size. It has one digital service telephone.
1.2 Features
Below lists the features for this model:
Provides 4E1 transparent transmission.
Has complete alarm function and can monitor remote device status.
The supervisory control interface implements centralized monitoring and export the monitor and control information of the local model and the remote one.
One link of 10/100M Ethernet for option.
One link to service telephone for duty contract for option.
Embodies the feature of making a distinction between the remote device power fail and fiber cut by means of indicators.
AC220 & DC-48V power options and the positive and negative of DC-48V can be optional because there is the self-test circuit for the polarity inside th1e device.
Standard 19inch/ 1U mount, little volume, light weight, steady capacity and convenient setup.
1.3 Parameter & Specification
E1 line Interface
Information bit rate2.048Mbit/s ±50ppmLine codeHDB3
Pulse amplitude2.37 V peak ±10% output portLine impedance120Ω/ balanced or 75Ω/ unbalanced
Pulse width224ns at half amplitudeReturn loss﹥18 dB at 4.224MHZ
Maximum insertion Loss:≥6dB at 4.224Mhz on the cableJitter tolerancefine than ITU-T G.742,G.823
10/100Base-T Interface
Optical interface:
Optical interface: SC/PC ，FC/PC，LC SFP for option
Optical Wavelenth: FP1310 nm /DFB1550nm+/-50/40nm
Sending consumption:-9dBm/-5dBm
Receiving and dispatching module:>-6dBm
Optical receiver receiving sensitivity:<-36 (BER<10 -10):
Dynamic range receiving: >-30dB
Optical code:NRZ
Transmitting range: SM 20Km/ 40Km/ 60 Km/ 120Km for option
Operation Condition:
Input voltage: AC220V，AC165V~AC265V;DC-48V,DC-36V~DC-72V
consumption: ≤ 5W
Operating temperature: -10°C ~ +50°C
Storing temperature: －40°C ~ +70°C
Relative humidity: 95 %
2. Installation
(75ohm)
(120ohm)
Note: when fiber port is customized as SFP slot, then please insert LC connector.
2.1 Indicator Light
This multiplexer has complete warning information from the LED, also could read remote device warning as following:
LEDColorStatusDescription
LPWRGreenOnThe local device is power on.
RPWRGreenOnThe remote device is power on.
LINKGreenOn/FlickOn means connect normal, flick means date receive and transmit
100MGreenOnEthernet rate is 100M.
OLOSRed On/FlickON means the fiber optical signel loss.This warning will shield OLOF, E3, E6.
Flick means the remote one optical signal receive error.
OLOFredonOptical line frame synchronization alarm, it will shield E3, E6 alarm. When no optical signal, OLOF will shield.
E3redonThe line error code is over than 10-3 alarm，it will shield E6 alarm.
E6redonThe line error code is over than 10-3 alarm.
LOS4-LOS1redon4 channel E1signal loss.
Onte: RPWR
When OLOS on, there are two different situations.
OLOS on & RPWR off: the remote one power cut.
OLOS on & RPWR on: the fiber cut.
2.2 DIP switches on the front panel
DIP1-6NameStateDescription
1RLOP1OnCommand the remote Ch1. E1 loop back.
2RLOP2OnCommand the remote Ch2. E1 loop back.
3RLOP3OnCommand the remote Ch3. E1 loop back.
4RLOP4OnCommand the remote Ch4. E1 loop back.
5MuteOnShield the warning voice.
6LRSOnLEDs show the remote device warning/ state
DIP7DIP8Description
OFFOFFUn-shield Ch.1~4 E1 warning
ONOFFShield the Ch.4 E1 warning
OFFONShield the Ch.3~4 E1 warning
ONONShield all the E1s warning.
2.3 Hot line phone
Please connect to telephone set.
2.4 E1 interface RJ45 connector
For 120ohm, 1~4 RJ45 connectors support 120ohm/balance.
The pin definition of E1 interface (120ohm balance, RJ45) is as follows:
E1 interface pin definition
For 75ohm, the 1~4 pair BNCs support 75ohm/unbalance.
In: E1 signal input.Out: E1 signal output
2.5 Optical interface
SC/PC, FC/PC for option, 1310Tx and 1550 Tx pairs using under single fiber . And if customized as SFP slot, then please insert LC connector.
2.6 10/100M interface
This multiplexer can offer a channel for 10/100M ,full/duplex auto-negotiation LAN interface, support VLAN protocol, this interface can continuous learn MAC addresses in the LAN that connected with it, and send the address as frame in another LAN. Transparence to TCP/IP protocol, offers security connection between different equipments in the network, used widely in network connection and monitor between WAN and LAN.
10/100 Base-T Ethernet port parameter
Rate: 10M or 100M, full/semi duplex auto-negotiation
Ethernet rate in optical line: 100M.
Protocol: support IEEE 802.3, IEEE 802.1Q(VLAN)
MAC address table: can learn 4096 MAC address
Ethernet buffer memory: 64Mbits SDRAM
Physical interface: RJ45 slot, support AUTO-MDIX
2.7 Power supply
It support power supply the combination of AC220V and DC-48V redundant.
AC220V socket: input voltage range AC 165V～265V；
DC-48V socket: input voltage range DC-36V ~-72V. If the power of DC-48V is used, the positive and negative terminal can be optional because there is the self-test circuit for the polarity inside the fiber optical mux.