Telephone to fiber optic converter PCM Voice over fiber Optic Media Converter fxs/fxo to fiber optical converter Transmitter 2CH

Telephone to fiber optic converter PCM Voice over fiber Optic Media Converter fxs/fxo to fiber optical converter Transmitter 2CH


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New and old versions are shipped randomly
Product features
Each provided 1-32 channels telephone interface ( standard configuration ).
Optional 1 - channels / 2 - channels 1 0 / 1 0 0 M Ethernet interface ( optional ) .
Telephone interface ( RJ 1 1 crystal head can line ).
Traditional PSTN Mandarin sound each voice channel occupies a 6 4 K , support calle
Small size , attractive appearance , easy installation
Improve the status display function easy maintenance and management .
Structure size desktop ( or wall )
Telephone Interface Features
Number of interfaces : 1 - 3 2 channel telephone interface ( standard configuration )
Voice channel characteristic : comply with " the Ministry of Posts and Telecommunications
telephone exchange equipment technical specifications “
Speech coding : PCM coded voice 6 4 kbps per channel
Crosstalk attenuation ：≥6 5 dB
Weighted noise : ≤6 3 . 7 dBmop
Insertion loss : - 3 ± 0 . 7 5 dB
Frequency characteristics : 3 0 0 - 3 4 0 0 Hz ( - 0 6 ~ + 3 dB )
Relay port ( FXO ) : connection with the switch
Wire AC input impedance : 2 0 0 + 6 8 0 / / 0 . 1 Ω ( three elements )
Subscriber line loop resistance : less than 1 K Ω ( including telephone )
Ringing peak voltage : 1 1 0 ~ 1 5 0 V
Ring Frequency : 2 2 ~ 5 0 mA
Return loss : 2 0 db
Ringing :ac90±15v
Ethernet interface Features
Number of interface : 1 / 2 Ethernet interfaces ( optional , 2 Ethernet with switching functions )
Rate : 1 0 M / 1 0 0 M , full - duplex half - duplex fully adaptive
Actual transmission bandwidth : Each network interface 2 5 M
Protocol : IEEE 8 0 2 . 3 , IEEE 8 0 2 . 1 Q ( VLAN )
Physical interface : RJ 4 5 block , support AUTO - MDIX ( cross - line adaptive direct line )
Return loss : 2 0 db
Ringing :Ac90±15V


Specifications:
Plug Type: UK,EU,us
Size: 20*20*30CM
Model Number: JYD-2T-T/R
Item Type: Optical Transmitter & Receiver
Brand Name: sevenlayer
Origin: Mainland China
Certification: CE