Pdh in Yasni Exposé of Tedder Zhan

1. OutlineDeveloped by our R&D team, ZMUX-36 PCM Cross Multiplexer is a flexible modular device whose core technology and intellectual rights are possessed by Guangzhou Yinxun.The device features high density ports, rugged design, easy operations and much reliable transmission of data.Equipped with max 4X64K Ethernet ports and max 32 subscriber’s interfaces for public applications, it can multiplex and crossly distribute channels of voices, data or images or combinations to max 4 E1 interfaces by installing varied subscriber’s interfaces. In doing so, some important transmissions of applications can continue working even if one E1 connection cuts off. 2. Functional features1)Provide max 4 optional basic group interfaces which conforms to the recommendation of ITU-T G.703;2)With E1 switching and add/drop capability;3)Optional E1 protection modes that can be provided by our ZMUX-36 can be set by our auxiliary NMS;4)optional line impedance: 120Ω or 75Ω;5)extended capacity such as digital signals and signaling processing;6)Provide max 4 optional N*64K Ethernet and 32 optional subscriber interfaces suitable for varied inputs of different services;7)The voice interface supports caller ID display;8)CCB payphone application with polarity reversal;3. Specifications1) Outer dimension: 19” 1U height, size:482.6mm(W)×44.45mm(H)×270mm(D)2) Speed of link interface: E1(2048Kbps)3) temperature of working enviroment: 0℃～40℃4) relative humidity of working enviroment: less than 85％(+25℃), non-condensing5) Power: DC -48V6) Ventilation conditions: natural ventilation7) signal transmission delay: ﹤600us8) transmission delay of CAS signalling: ﹤7ms9) basic group interfaces: 210) interface impedance: optional 75Ω/120Ω11) physical and electrical performance: conforms to ITU-G.70312) frame structure: conforms to ITU-G.73213) Internal clock accuracy: ±30ppm4. Subscriber Interfaces (optional)Ø FXO  Ø FXS  Ø 2 wire audio interface/2 wire E&M interface  Ø 4 wire audio interface/4 wire E&M interface  Ø RS232/V.24 asynchronous data interface  Ø RS232 synchronous data interface  Ø RS422 data interface  Ø RS485 data interface Ø V.21/v.22 interface  Ø Hot-line phone interface Ø Magnet telephone interface  Ø V.35 interface(n*64K bandwidth)  Ø 10/100Base_T Ethernet interface(10M bandwidth)  Ø G.703 64Kb/s synchronous data interface   NOTES: The corresponding moduels for above subscriber interfaces can be optional for installation based on actual needs of users.Besides one channel of Ethernet with 10M bandwidth,this device provides max 30 slots for your optional subscriber modules. 5. Technical Parameters ☆ G.703-E1 InterfaceConforms to the recommendation of ITU G.703/G.704;Nominal Bit Rate: 2048kbit/sBit Rate Fault Tolerant: +102.4bitE1 Line Code: HDB3 Impedance: 75Ω  or  120Ω ☆ SUP Monitor Interface Data level conforms to the recommendation of V.28 Asynchronous Data Rate: 9600bpsStop Bit: 1 bitdata bit:   8 bitStart Bit: 1 bitParity Check: noFlow Control: no ☆ Subscriber Interface (FXO) Impedance: 600ΩInsertion Loss: -3±0.75dBFrequency Characteristic: 300～3400Hz(-0.6～+3dB)Weighted Noise: ≤63.7dBmopCrosstalk Attenuation: ≥65dBLoop Impedance: ≤1800Ω ☆ Subscriber Interface (FXS) Impedance: 600ΩInsertion Loss: -3±0.75dBFrequency Characteristic: 300～3400Hz(-0.6～+3dB)weighted noise: ≤63.7dBmopCrosstalk Attenuation: ≥65dBLoop Impedance: ≤1800Ω ☆ 2/4 wire Audio Interface Coding Type: ITU-T G.711AFrequency Range: 300～3400Hz2 wire Input Relative Level: 0～ -5dBrOutput Relative Level: -2～ -7dBr4 wire Input Relative Level: -14dBrOutput Relative Level: +4dBr ☆ V.24/RS232 Interface Data and clock level conform to the recommendation of V.28Synchronous Data Rate: 64KbpsAsynchronous Data Rate : 0～19200bps ☆ V.21/V.22 V.21AD frequency characteristic: -0.2 - +0.2dBV.21DA frequency characteristic: -0.2 - +0.2dBV.22AD frequency characteristic: -0.2 - +0.2dB(adjustable)V.22DA frequency characteristic: -0.2 - +0.2dB (adjstable)Return loss:                       40dBBalance Degree:                70dBCommon-mode rejection ratio (CMRR): 70dB          Power rejection ratio:      30dBIdle channel noise:          ≥65dB ☆   V.35 Interface type: V.35 synchronousRate: Nx64Kb/s(N =1～30)Clock: DCE ☆ Ethernet Interface Compatible with IEEE802.3Local Area Network Interface Rate: 10Base_TWide Area Network Interface Rate: 10Mb/sSupports simplex mode, duplex mode , full duplex mode & tranparent mode ☆   ☆ Others 19 inch 1U EIA chassisLED indicates the working status of the system       Input Voltage: -48V DC Full Capacity Static Power:

PCM multiplexer,PDH multiplexer,phone optic mux,E1 failover switch,fiber optic equipment factory in the name of Guangzhou Yinxun Comm.Tech.Co.,ltd abiding by ISO 9001-2000 guideline

1. SummaryThis product is the fundamental device for the digital communication system, which is also named PCM basic group device.It is used to multiplex the signals such as voice,data & image into a standard 2M interface via various interface cards,realizing point-to-point transmission. 2. Functional Featuresa) provide 30 channels of optional subscribers interfaces of various types to facilitate the access of various services;b) The voice interface supports caller ID display;c) CCB payphone application with polarity reversal;d) It directly provides 2M channel for transmission;e) Perfect indications of status are available to facilitate maintenance and management;f) With small size, attractive appearance, and easy for installation and operation. 3. Working ConditionsWorking Temperature:  0℃ ~ 40℃Relative Humidity:  ≤ 90% (25℃)4. Power SupplyInput Voltage:  -48VAcceptable dynamic Voltage:  -36V ~ -72VInput Current:  < 1A5. Subscriber Interface Modules (optional) Ø FXOØ FXSØ 2 wire audio interface/2 wire E&M Ø 4 wire audio interface/4 wire E&M     Ø RS232/V.24 asynchronous data interfaceØ RS232 synchronous data interfaceØ RS422 data interfaceØ   RS485 data interfaceØ   Hot-line phone interface           Ø   Magnet telephone interfaceØ   V.35 interface (n*64K bandwidth)Ø   V.21/V.22 interfaceØ  10/100Base_T Ethernet interface(n*64K bandwidth)  Ø G.703 64Kb/s co-directional data interface        NOTES: The above subscriber interface modules can be optional for installation based on actual need of user. This device provides max 30 slots for your optional modules. 6. Technical Parameters ☆ G.703-E1 Interface Confoms to the recommendation of ITU G.703/G.704;Nominal Bit Rate: 2048kbit/sBit Rate Fault Tolerant: +102.4bit E1 Line Code: HDB3 Impedance: 75Ω  or  120Ω ☆ Subscriber Interface(FXS) Impedance: 600Ω Insertion Loss: -3±0.75dBFrequency Characteristic: 300～3400Hz(-0.6～+3dB) Weighted Noise: ≤63.7dBmopCrosstalk Attenuation: ≥65dBLoop Impedance: ≤1800Ω ☆ Subscriber Interface(FXO) Impedance: 600ΩInsertion Loss: -3±0.75dB      Frequency Characteristic: 300～3400Hz(-0.6～+3dB)Weighted Noise: ≤63.7dBmopCrosstalk Attenuation: ≥65dBLoop Impedance: ≤1800Ω ☆  V.24/RS232 Interface Data and clock level conform to the recommendation ofV.28Synchronous Data Rate: 64KbpsAsynchronous Data Rate : 0～19200bps ☆ 2/4 wire Audio Interface Coding mode:     ITU-T G.711A  Frequency Range: 300～3400Hz2 wire Input Relative Level: 0～ -5dBrOutput Relative Level: -2～ -7dBr4 wire Input Relative Level: -14dBrOutput Relative Level:  +4dBr ☆  V.35 Interface type: V.35synchronousRate: Nx64Kb/s(N =1～30)Clock: DCE ☆  Ethernet interface Compatible with IEEE802.3Rate of Local Area Network Interface: 10/100Base_TRate of Wide area network interface: n×64k (n=1－30)Support simplex mode, duplex mode, full-duplex mode & tranparent mode. ☆  Others 19 inch 1U EIA chassisLED indicators indicates the working status of the systemInput Voltage: -48V DC Acceptable dynamic Voltage: -36V ~ -72VInput current: < 1AAmbient Temperature: ≤50℃Relative Humidity: ≤90%RH 7. Scope of ApplicationsThis PCM multiplexer is suitable for applications with E1 link  for telecommunications end point stations or point to point transmission, such as SDH network,PDH optical terminals, microwave telecommunications, wireless spread spectrum, transmission equipments with copper wire,E1 converter in the lines of power stations,mines, government agencies, the military, airports, police department,express highway, banks and taxation systems,etc.