Cygnus 850 E1 Démarrage rapide Manuel d'installation - Page 6
Parcourez en ligne ou téléchargez le pdf Démarrage rapide Manuel d'installation pour {nom_de_la_catégorie} Cygnus 850 E1. Cygnus 850 E1 6 pages. 2 mbps modem
Imprimer la pageConfiguration for 2 E1 modems connectivity
1. When two E1 modems are used in the circuit to connect local exchange and the customer premises, then
one E1 modem should be configured as NT with Line Slave clock mode to connect at the customer
premises and the other modem should be in factory default mode to be connected at local exchange.
2. The diagram shows the connectivity of two E1 modems.
E1 interface
Router
LAN
Premises
3. To change the clocking mode, navigate through the menus to configure System Clocking mode ( 2.1.1 of
flowchart diagram ) and select change option. Then select Line Salve clock mode.
4. To change the DSL type, navigate through the menus to configure DSL Type ( 2.3.1 of flowchart diagram )
and then select DSL Type as NT.
5. Before installing the modems, verify the leased line is of 2 Mbps ( Unframed ) or Nx64 kbps ( Framed ). If it
is unframed 2 Mbps then you can directly connect the E1 modems in the line as default speed is 2 Mbps. If
we need to configure the modems for other than 2 Mbps speeds ( eg.: 128 kbps ), refer page 1 for the
configuration.
6. After performing the above steps, save the parameters by navigating through the menus to store
parameters in NVRAM ( 2.1.7 of flowchart diagram ).
7. Then restart the modem manually and verify the parameters by navigating through the menu to view unit
status. In that Clocking should be Internal and DSL Type should be LT.
8. Now the modems are ready to be connected in the line.
CYGNUS 850/E1
modem
2-wire Line
Connectivity using two E1 Modems
Page 6 of 6
E1 interface
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CYGNUS 850/E1
modem
Exchange
PCM