タイトルまたは説明
Features
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:
0℃~*0℃
relative humidity:
≤*0%(*5℃)
1.3 power
supply
voltage: **8V
(**6V~**2V)
current: <1A
2ã€Technical
index
2.1 2Mb/s
interface
Standard E1 interface in conformity with
ITU-T G.**3, G.**4, G.**2
a)Bit rate: ***8Kbps±*0ppm
b)code pattern:
HDB3
c)interface impedance: *5&branded;
2.2 User and
loop interface
a)impedance:
**0&branded;***0&branded;||0.1μF
b)insertion loss:
*3±0.*5dB
c)frequency characteristic: **0~***0Hz(*0.6~*3dB)
d)cacophony:
≤*3.7dBmop
cacophony
e)crosstalk attenuation: ≥*5dB
f)loop impedance:
≤***0&branded;
2.3 Two/Four
line acoustic frequency
interface
a)impedance:
**0&branded;
b)Four line AD gain:
*4dB(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: *0dB
i)degree of balance:
*0dB
j)Common mode rejection
ratio:
*0dB
k)power rejection ratio:
*0dB
m)vacant channel noise:
≥*5dB
2.4 Two/Four
line E&M interface
a)impedance:
**0&branded;
b)Four line AD gain:
*4dB(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:
*0dB
i)degree of balance:
*0dB
j)Communication mode rejection
ratio:
*0dB
k)power rejection ratio:
*0dB
m)vacant channel noise:
≥*5dB
2.5 V.*4
interface
a)interface type: V.*4
asynchronous
b)speed: 0
- *9.2Kbps
2.6 V.*5
interface
a)interface type:
国: |
China |
モデル番号: |
16E1 PDH Multiplexer E1 to Fiber Optic
|
离岸价格: |
40 / (交渉可能)
Get Latest Price
|
ロケーション: |
Guangzhou |
最低注文量の価格: |
40 |
最低注文量: |
10pairs |
パッケージの詳細: |
- |
納期: |
- |
供給能力: |
980000pcs |
支払いタイプ: |
- |
製品グループ : |
- |