Application examples:
1¡¢Features
- Providing up to 4 E1 channels and 1 optional 10/100Mbps Ethernet channel
- Fiber port bit rate: 150Mbps, up to 120Km distance without repeater
- E1 Line code: HDB3, compliant to G.703, G.823 and G.742.
- E1 channel support both 75ohm & 120ohm impedance
- Ethernet port support 10/100Mbps auto-detection, Full/Half Duplex auto-adaption.
- Ethernet port can transmit VLAN tag
- Standalone,220VAC or -48VDC power supply optional
- Small bulk, attractive appearance, convenient for installation and operation
- Perfect status display function, easy to maintain;
- Abundant interface varieties, convenient for the reception of multiplex service;
- Voice interface with caller ID and counter-pole signal;
1.1 Advantages
a)Abundant interface varieties, convenient for the reception of multiplex service;
b)Voice interface with caller ID and counter-pole signal;
c)Optional optical transmission interface, connect directly to optical fiber;
d)Perfect status display function, easy to maintain;
e)Small bulk, attractive appearance, convenient for installation and operation.
1.2 Environmental requirement
operating temperature£º 0¡æ¡«40¡æ
relative humidity£º ≤90%£¨25¡æ£©
1.3 power supply
input voltage£º -48V (-36V¡«-72V)
input current£º £¼1A
2 ¡¢Technical index
2.1 optical interface parameter
Optical wavelength£º850/1310nm for multi-mode fiber, 1310/1550nm for single-mode fiber.
Optical interface£ºSC/FC
Transceiver module£º>-6dBm
Optical receiver sensitivity£º<-36£¨BER<10 £©
Receive range£º>-30dB
Transmission distance£ºmulti-mode 2 Km, single-mode 40 Km, single-mode 80 Km,single-mode 120 Km
Jitter tolerance£ºaccording with G.742 and G.823.
2Mb/s interface(6*2M)
Standard E1 interface in conformity with ITU-T G.703, G.704, G.712
a)bit rate£º 2048Kbps±50ppm
b)code pattern£º HDB3
c)interface impedance£º 75Ω
2.2 User and loop interface
a)impedance£º 200Ω+680Ω||0.1μF
b)insertion loss£º -3±0.75dB
c)frequency characteristic£º 300¡«3400Hz(-0.6¡«+3dB)
d)cacophony£º ≤63.7dBmop cacophony
e)crosstalk attenuation£º ≥65dB
f)loop impedance£º ≤1800Ω
2.3 Two/Four line acoustic frequency interface
a)impedance£º 600Ω
b)Four line AD gain£º 14dB£¨factory adjustable£©
c)Four line DA gain£º -2 dB£¨factory adjustable£©
d)Four line AD frequency characteristic£º -0.2 - +0.2dB
e)Four line DA frequency characteristic£º -0.2 - +0.2dB
f)Two line AD frequency characteristic£º -0.2 - +0.2dB
g)Two line DA frequency characteristic£º -0.2 - +0.2dB£¨factory adjustable£©
h)Return loss£º 40dB
i)Degree of balance£º 70dB
j)Common mode rejection ratio£º 70dB
k)power rejection ratio£º 30dB
m)vacant channel noise£º ≥65dB
2.4 Two/Four line E&M interface
a)impedance£º 600Ω
b)Four line AD gain£º 14dB£¨factory adjustable£©
c)Four line DA gain£º -2 dB£¨factory adjustable£©
d)Four line AD frequency characteristic£º -0.2 - +0.2dB
e)Four line DA frequency characteristic£º -0.2 - +0.2dB
f)Two line AD frequency characteristic£º -0.2 - +0.2dB
g)Two line DA frequency characteristic£º -0.2 - +0.2dB£¨factory adjustable£©
h)Return loss£º 40dB
i)degree of balance£º 70dB
j)Communication mode rejection ratio£º 70dB
k)power rejection ratio£º 30dB
m)vacant channel noise£º ≥65dB
2.5 V.24 interface
a)interface type£º V.24 asynchronous
b)speed£º 0 - 19.2Kbps
2.6 V.35 interface
a)interface type£º V.35 synchronous
b)speed£º Nx64Kb/s£¨N =1-15£©
c)timing mode£º DCE
2.7 10/100Base_T interface
a)interface type£º 100Base-T
b)transmission speed£º 100M
c)protocol£º link layer bridging
3¡¢Outline dimension
adopt 19-inch standard casing
Dimension:260mm×480mm×44mm (L×W×H) |