User`s manual

Moxa Managed DSL Ethernet Extender Featured Functions
3-3
1st DIP switch: CO/CPE Assignment
The DSL Ethernet extenders need to work in pairs with one unit designated as a CO (central office) device and
the other as a CPE (customer premise equipment) device. In addition to manual configuration by selecting the
DIP switch settings (CO/CPE) on both devices, the IEX series can also perform automatic CO/CPE designation
when both extenders are set as CO devices (all IEX series extenders are set as CO by default). The system will
auto-negotiate to assign CPE to one of the devices in each connected pair and will decide the maximum
transmission data rate based on line conditions.
NOTE
•
Time from device boot-up to connection-ready status: 70 seconds to 6 minutes, depending on line
conditions.
•
The DSL port is designed to be used on private communication lines for point-to-point connections only
and
is not able to be connected to the Public Switched Telephone Networks (PSTN).
NOTE
•
For the IEX-402-SHDSL series, the Auto CO/CPE negotiation is only available under STD mode.
•
The system-ready time with auto CO/CPE negotiation takes approximately 20 seconds to 3 minute
s longer
(depending on line conditions) than when manually pre-defining
the devices (one as a CO and the other as
a CPE device) using the with DIP switch settings.
2nd DIP Switch: SNR/Speed Display Information
The second DIP switch is used to select whether the transmission speed or the SNR (signal-to-noise ratio) is
displayed on the DSL Speed/SNR LED indicator. More signal bars means higher DSL speed or SNR.
IEX
-402-SHDSL Series
Turbo Speed (K bits) STD Speed (K bits) SNR (dB)
5 10297 – 15304 4609 – 5760 18 – 30
4 5697 – 10296 3073 – 4608 14 – 17
3 3457 – 5696 2049 – 3072 10 – 13
2 1025 – 3456 769 – 2048 6 – 9
1
192 – 1024
192 – 768
3 – 5
IEX
-402-VDSL2 Series
Asymmetric
TX Speed (Kbps)
Symmetric
TX Speed (Kbps)
SNR (dB)
5 80001 - 100000 60001 - 100000 21-30
4 55001 - 80000 30001 - 60000 13-20
3 20001 - 55000 15001 - 30000 6-12
2 5001 - 20000 4001 - 15000 5
1 256 - 5000 256 - 4000 3-4