User`s guide

PassFinder AP2520 VoIP Router/Gateway Operation Manual Version 1.10 / Mar. 2002
AddPac Technology Co., Ltd. -
66 -
4.5. WAN (Serial) Interface Configuration
The PassFinder AP2520 router provides V.35 interface port for the WAN (serial)
interface. The WAN (serial) port can be set as HDLC encapsulation, PPP
encapsulation or frame-relay encapsulation according to the usage of the port,
transmission line to which the router is connected, or the configuration of the
router in the other side. To enable the router to normally operate, correctly set
up the mode of the WAN (serial) port. How to set up each mode of the WAN
(serial) port will be described later.
The WAN (serial) port of the PassFinder AP2520 router can be set as the DCE
mode or the DTE mode. Basic setting is the DTE mode. In the DTE mode, the
router receives clock and line speed information from the DSU/CSU. It is also
possible to operate the WAN (serial) port in the DCE mode although it is not a
normal case. In this case, the user must set that internal clock can be used for
the WAN (serial) interface at the defined speed.
The following chapter describes how to set up HDLC and PPP frame-relay in
detail.
For reader’s reference, the serial interface supports the sub-interface only in the
frame-relay encapsulation mode.
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