3Com Router Module Guide
Chapter 3 Multifunctional Interface Modules
3-52
Note:
The standard equipping package of the ROUTER 2-PORT ADSL OVER POTS MIM
includes the regular telephone cable(s). You can separately order an external splitter
as needed.
3.12.5 Connecting the Interface Cable
In G. Lite mode, no splitter is needed. You can directly connect the router to the PSTN
using a telephone cable, and simply connect the phone-set in parallel with the router at
the cable distribution box.
Full rate mode requires a splitter. Follow these steps to connect the cables:
Step 1: Plug one end of a telephone cable into the ADSL port on the router, and the
other end into the internal ADSL port on the splitter.
Step 2: Connect the telephone to the phone port on the splitter with another telephone
cable.
Step 3: Connect the external ADSL port on the splitter to the PSTN with a third
telephone cable.
Modem interface
Phone port
Line port
ADSL card
RJ11 interface
PSTN
Modem interface
Phone port
Line port
ADSL card
RJ11 interface
R
out
er
DS
L
A
M
Splitter
Modem interface
Phone port
Line port
ADSL card
RJ11 interface
PSTN
Modem interface
Phone port
Line port
ADSL card
RJ11 interface
R
out
er
DS
L
A
M
Splitter
Figure 3-56
Connecting the ROUTER 2-PORT ADSL OVER POTS MIM
3.13 Router NDEC2 Encryption Accelerator MIM
3.13.1 Introduction
High Network Data Encryption (ROUTER NDEC2 ENCRYPTION ACCELERATOR
MIMfor short) supports IPsec protocol, multiple hardware encryption/decryption and
hash algorithm to speed up the encryption of the IP packets, featuring
high-performance and high-reliability.
