Connecting to a ppp wan, Connecting to a frame relay wan – Nx Networks 3000 User Manual
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3000 Series User Guide
21
Connecting to a PPP WAN
To connect the WAN module to a PPP WAN,
1. Connect the module to an external modem.
Note: The 3000 Series support both asynchronous and synchronous
modems.
2. Connect the modem to the telephone line with an RJ-11 cable.
Connecting to a Frame Relay WAN
To connect the WAN module to a Frame Relay WAN,
1. Connect the module to an external Channel Service Unit/Digital Service
Unit (CSU/DSU).
You can purchase the appropriate cable from N
x
Note: The 3000 Series works with any of the major CSU/DSU products
on the market.
3000 Series
Modem
PSTN
(PSTN = Public Switched Telephone Network)
3000 Series
VOIC
E
OICE
V1
V1
D1
D1
D2
D2
D3
D3
ETH
ETH
V2
V2
V3
V3
V4
V4
DATA
ALM
ALM
OK
OK
PWR
PWR
Internet or
Other WAN
Modem
Internet
Service
Provider