BinTec elmeg T484, Operating Instructions Manual

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1
NT
2
Split ter
3
Con nec ti on for the ser vi ce pro vi der
4
Mo dem
5
Ex ter nal HUB / Switch over LAN (100 MBit/s)
6
Net work PC at the HUB / switch
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Net work PC at the HUB / switch
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Net work PC at the HUB / switch
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PC at the USB port
Configuring the PCs
IP ad dres ses
Af ter you con nect a PC IP ad dres ses must be as sig ned. When doing this you must en su re that the IP ad dres ses as sig -
ned to the PCs and the PABX sys tems are in the same IP net work. This also ap plies if you wish to uti li ze com mon re -
sour ces among se ve ral PCs in a LAN (for ex am ple re lea sed di rec to ries, net work dri ves, net work prin ters). All PCs lo -
ca ted wit hin the net work re qui re an IP-ad dress.
In its in iti al sta tus the PABX is con fi gu red with the IP ad dress 192. 168. 1. 250 and the DHCP ser ver in te gra ted into
the PABX is ac ti vat ed, mea ning that any PCs that are con nec ted must be set to re cei ve their IP ad dress au to ma ti cal ly.
This mode is re com men ded to dis pen se with the com pli ca ted, ma nu al con fi gu ra ti on of the IP ad dres ses for the pcs
that would ot her wi se be re qui red.
Note
If you are al rea dy using a net work and whish to use the PABX as the DHCP ser ver you may have to trans fer ot her pa -
ra me ters via DHCP to the pcs.
Only chan ge the se pa ra me ters if your exi sting net work ex pli cit ly de mands this. Ar bi tra ri ly chan ged pa ra me ters
may re sult in a com ple te loss of all net work functions.
You can con fi gu re the fol lo wing pa ra me ters:
De fault TTL
If you can not re ach cer tain si tes in the In ter net (a »ping« is ans we red with the mes sa ge »des ti na ti on un rea cha ble«) it
may be mea ning ful to in crea se the »TTL« pa ra me ter (de fault is 64) and spe ci fy that all PCs con fi gu red via DHCP to be
re-as sig ned con fi gu ra ti on from the DHCP ser ver (or sim ply res tart your pcs).
MTU
The »MTU« pa ra me ter is used for de fi ning the data pa cket size used in the LAN. Only pa ckets with a ma xi mum »pay -
lo ad« of 1452 by tes can be trans por ted via a DSL In ter net por tal (when the PPPoE pro to col is used, for ex am ple with
T-On li ne. Pa ckets in the PABX sys tem should not be first split up and re ply pa ckets not re-as sem bled. It is the re fo re
ex pe dient to use an »MTU« of 1452 by tes to achie ve the grea test pos si ble data throughput rate for the DSL con nec ti -
on. This may, ho we ver, re sult in the data trans fer rate in the LAN being re du ced slight ly.
Des crip ti on of the rou ter functions
59
a/b1 a/b2 a/b3 a/b4 a/b5 a/b6 a/b7 a/b8
1 2
NO
1 2
NO
S0 intern S0 extern
a/b1
2a/b 1a/b 3a/b 4a/b Modul S0 intern
2a/b 1a/b 3a/b 4a/b 5a/b 6a/b a2 a1 b1 b2
Po
we
r
ISD
N
/ P
OT
S
DS
L
LA
N
US
B
Modem
1
2
3
4
5
6
7
8
9