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1U PCM cross multiplexer of 9 optional E1 protection modes

1. Outline Developed 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 features 1)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. Specifications 1) 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-condensing 5) Power: DC -48V 6) Ventilation conditions: natural ventilation 7) signal transmission delay: ﹤600us 8) transmission delay of CAS signalling: ﹤7ms 9) basic group interfaces: 2 10) interface impedance: optional 75Ω/120Ω 11) physical and electrical performance: conforms to ITU-G.703 12) frame structure: conforms to ITU-G.732 13) Internal clock accuracy: ±30ppm 4. 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 Interface Conforms to the recommendation of ITU G.703/G.704; Nominal Bit Rate: 2048kbit/s Bit Rate Fault Tolerant: +102.4bit E1 Line Code: HDB3  Impedance: 75Ω  or  120Ω ☆ SUP Monitor Interface                               Data level conforms to the recommendation of V.28 Asynchronous Data Rate: 9600bps Stop Bit: 1 bit data bit:   8 bit Start Bit: 1 bit Parity Check: no Flow Control: no ☆ Subscriber Interface (FXO) Impedance: 600Ω Insertion Loss: -3±0.75dB Frequency Characteristic: 300~3400Hz(-0.6~+3dB) Weighted Noise: ≤63.7dBmop Crosstalk Attenuation: ≥65dB Loop Impedance: ≤1800Ω ☆ Subscriber Interface (FXS) Impedance: 600Ω Insertion Loss: -3±0.75dB Frequency Characteristic: 300~3400Hz(-0.6~+3dB) weighted noise: ≤63.7dBmop Crosstalk Attenuation: ≥65dB Loop Impedance: ≤1800Ω ☆ 2/4 wire Audio Interface                                Coding Type: ITU-T G.711A Frequency Range: 300~3400Hz 2 wire Input Relative Level: 0~ -5dBr Output Relative Level: -2~ -7dBr 4 wire Input Relative Level: -14dBr Output Relative Level: +4dBr ☆ V.24/RS232 Interface Data and clock level conform to the recommendation of V.28 Synchronous Data Rate: 64Kbps Asynchronous Data Rate : 0~19200bps ☆ V.21/V.22 V.21AD frequency characteristic: -0.2 - +0.2dB V.21DA frequency characteristic: -0.2 - +0.2dB V.22AD frequency characteristic: -0.2 - +0.2dB(adjustable) V.22DA frequency characteristic: -0.2 - +0.2dB (adjstable) Return loss:                       40dB Balance Degree:                70dB Common-mode rejection ratio (CMRR): 70dB           Power rejection ratio:      30dB Idle channel noise:          ≥65dB ☆   V.35 Interface type: V.35 synchronous Rate: Nx64Kb/s(N =1~30) Clock: DCE ☆ Ethernet Interface                               Compatible with IEEE802.3 Local Area Network Interface Rate: 10Base_T Wide Area Network Interface Rate: 10Mb/s Supports simplex mode, duplex mode , full duplex mode &  tranparent mode ☆   ☆ Others 19 inch 1U EIA chassis LED indicates the working status of the system        Input Voltage: -48V DC  Full Capacity Static Power:

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