CTC Union SHDTU03b, User Manual

Page: 36 / 96

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8 Advanced Setup
Advanced setup contains
SHDSL.bis , WAN , Bridge , Route , NAT/DMZ , Virtual SERVER and
FIREWALL parameters.
8.1 SHDSL.bis
You can setup the Annex type, data rate and SNR margin for SHDSL.bis
parameters in SHDSL.bis.
Click SHDSL.bis
Annex Type : There are
foure Annex types, Annex
A (ANSI), Annex B (ETSI),
AnnexAF and Annex BG
in SHDSL.bis. Check with
your ISP about it.
TCPAM Type
: the default
option is Auto. You may
assign the different type
manually by click the
caption
TPCAM-16 or
TPCAM-32
Data Rate : you can setup the SHDSL.bis data rate in the multiple of 64kbps.
The default data rate is 5696Kbps (n=89).
Under Annex F/G
TCPAM32 ; data rate is 768Kbps ~ 5696Kbps (Nx64kbps, N=12~89)
TCPAM16 ; data rate is 192Kbps ~ 3840Kbps (Nx64kbps, N=3~60)
Under Annex A/B
TCPAM16 ; 192Kbps ~ 2304Kbps (Nx 64kbps, N=3~36)
Current G.SHDSL.bis Router does not support the adaptive data rate.
SNR margin is an index of line connection quality. You can see the actual SNR margin in STATUS
SHDSL.bis. The larger is SNR margin; the better is line connection quality.
If you set SNR margin in the field as 2, the SHDSL.bis connection will drop and reconnect when the
SNR margin is lower than 2. On the other hand, the device will reduce the line rate and reconnect for
better line connection quality.