- 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 transimit VLAN tag
- Standalone,220VAC or -48VDC power supply optional
- Small bulk, attractive appearance, convenient 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 maintenance;
e)Small bulk, attractive appearance, convenient for installation and operation.
1.2 Environmental requirement
operating temperature: 0℃~40℃
relative humidity: ≤90%(25℃)
1.3 power supply
input voltage: -48V (-36V~-72V)
input current: <1A
2、Technical index
2.1 optical interface parameter:
Optical wavelength:850/1310nm for multi-mode fiber, 1310/1550nm for single-mode fiber.
Optical interface:SC/FC
Transceiver module:>-6dBm
Optical receiver sensitivity:<-36(BER<10 )
Receive range:>-30dB
Transmission distance:multi-mode 2 Km, single-mode 40 Km, single-mode 80 Km,single-mode 120 Km
Jitter tolerance:according 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: 2048Kbps±50ppm
b)code pattern: HDB3
c)interface impedance: 75Ω
2.2 User and loop interface
a)impedance: 200Ω+680Ω||0.1μF
b)insertion loss: -3±0.75dB
c)frequency characteristic: 300~3400Hz(-0.6~+3dB)
d)cacophony: ≤63.7dBmop cacophony
e)crosstalk attenuation: ≥65dB
f)loop impedance: ≤1800Ω
2.3 Two/Four line acoustic frequency interface
a)impedance: 600Ω
b)Four line AD gain: 14dB(factory adjustable)
c)Four line DA gain: -2 dB(factory adjustable)
d)Four line AD frequency characteristic: -0.2 - +0.2dB
e)Four line DA frequency characteristic: -0.2 - +0.2dB
f)Two line AD frequency characteristic: -0.2 - +0.2dB
g)Two line DA frequency characteristic: -0.2 - +0.2dB(factory adjustable)
h)Return loss: 40dB
i)Degree of balance: 70dB
j)Common mode rejection ratio: 70dB
k)power rejection ratio: 30dB
m)vacant channel noise: ≥65dB
2.4 Two/Four line E&M interface
a)impedance: 600Ω
b)Four line AD gain: 14dB(factory adjustable)
c)Four line DA gain: -2 dB(factory adjustable)
d)our line AD frequency characteristic: -0.2 - +0.2dB
e)Four line DA frequency characteristic: -0.2 - +0.2dB
f)Two line AD frequency characteristic: -0.2 - +0.2dB
g)Two line DA frequency characteristic: -0.2 - +0.2dB(factory adjustable)
h)Return loss: 40dB
i)degree of balance: 70dB
j)Communication mode rejection ratio: 70dB
k)power rejection ratio: 30dB
m)vacant channel noise: ≥65dB
2.5 V.24 interface
a)interface type: V.24 asynchronous
b)speed: 0 - 19.2Kbps
2.6 V.35 interface
a)interface type: V.35 synchronous
b)speed: Nx64Kb/s(N =1-15)
c)timing mode: DCE
2.7 10/100Base_T interface
a)interface type: 100Base-T
b)transmission speed: 100M
c)protocol: link layer bridging
3、Outline dimension
Adopt 19-inch standard casing
Dimension:260mm×480mm×44mm (L×W×H)
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