3onedata 7301 Manual do utilizador - Página 3
Procurar online ou descarregar pdf Manual do utilizador para Modem 3onedata 7301. 3onedata 7301 5 páginas. E1 optic fiber modem
Imprimir página2. 2. 2. 2. Optic
Optic
Optic
Fiber
Fiber
Optic Fiber
Fiber interface
Optic fiber interface need use in pairs, TX port is fiber send side,
connect another long-range light of interface fiber receive end RX ;
RX port is fiber receive side , connect
side :
Optic fibers spent both ends mark the label (the following picture
show: A-A, B-B, can also mark another: A1-A2, B1-B2), in order to
use.
DIP
switch
DIP
DIP switch
DIP
switch
switch setup
There have a range of DIP switch in the 7301
used to choose E1 time slot,SW1 is used to function setup.
Function
Function
setup
setup
Function
Function setup
setup switch
1. 1. 1. 1. Impedance
Impedance
Impedance
Impedance setup
NO.1 NO.2 NO.3 Inpedance
ON
ON
OFF OFF
2. 2. 2. 2. Loop
Loop
Loop
setup
setup
Loop setup
setup
NO.4 OFF:non-loop
NO.5 OFF:non-loop
interface
interface
interface
setup
setup: : : :
setup
switch
switch
SW1
SW1
switch SW1
SW1
setup
setup
setup
ON
75 Ohm
OFF
120 Ohm
ON:optic interface loop
ON:E1 interface loop
Your Serial and Data Communications Expert
long-range same fiber send
panel, Time Slot is
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