OffOffOnOffOnOn 576
OnOnOffOffOnOn 640
OffOnOffOffOnOn 704
OnOffOffOffOnOn 768
OffOffOffOffOnOn 832
OnOnOnOnOffOn 896
OffOnOnOnOffOn 960
OnOffOnOnOffOn 1024
OffOffOnOnOffOn 1088
OnOnOffOnOffOn 1152
OffOnOffOnOffOn 1216
OnOffOffOnOffOn 1280
OffOffOffOnOffOn 1344
OnOnOnOffOffOn 1408
OffOnOnOffOffOn 1472
OnOffOnOffOffOn 1536
OnOnOffOffOffOn 1600
OffOnOffOffOffOn 1664
OnOffOffOffOffOn 1728
OffOffOffOffOffOn 1792
OnOnOnOnOnOff 1856
OffOnOnOnOnOff 1920
OnOffOnOnOnOff 1984
OffOffOnOnOnOff 2048
OnOnOffOnOnOff 2112
OffOnOffOnOnOff 2176
OnOffOffOnOnOff 2240
OffOffOffOnOnOff 2304
Switch S3-7: Reset Software Defaults
Use Switch S3-7 to reset the software configured factory defaults.
This feature is applicable only using the SNMP Management Module to
SNMP through the mDSL Modem central office to manage your units.
For more information, please refer to the SNMP Management Module
Operations Manual.
S3-7 Setting
On Normal Operation
Off Reset
Switch S3-8: Reserved
Switch S3-8 is reserved for factory use and must remain in the On
position.
Installation
When the Compact mDSL Modem has been properly configured, it
may be connected to the DSL twisted pair interface, the 10BaseT
Ethernet Interface, and the power source. This section describes
these connections.
Connecting DSL Interface
The MDU9705A-10BT supports communication between 10BaseT
Hubs or Workstations at distances to 5 miles (8 km) over 24 AWG
(.5mm) twisted pair wire. There are two requirements for installing the
Compact mDSL Modem:
1. These units operate as a pair. Both units at the end of the
twisted pair DSL span must be set for the same DTE rate.
2. To function properly, the Compact mDSL Modem needs one
twistedpair of metallic wire. This twisted pair must be
unconditioned, dry, metallic wire, between 19 (.9mm) and 26
AWG (.4mm) (the higher number gauges will limit distance).
Standard dial-up telephone circuits, or leased circuits that run
through signal equalization equipment, or standard, flat modu-
lar telephone type cable, are not acceptable.
The RJ-45 connector on the Compact mDSL Modem’s twisted pair
interface is polarity insensitive and is wired for a two-wire interface.
The signal/pin relationships are shown in Figure 6 below.
NOTE: The Compact mDSL Modem will automatically select
the optimum line rate for the required distance based on the DTE
rate set by Switches S3-1 through S3-6. This selection is based
on the lowest line rate that will support the DTE rate.
Compact mDSL Modem
11
Compact mDSL Modem
Figure 6.Compact mDSL Modem twisted pair lineinterface.
1 (N/C)
2 (N/C)
3 (N/C)
4 (2-Wire TIP)
5 (2-Wire RING)
6 (N/C)
7 (N/C)
8 (N/C)
1
2
3
4
5
6
7
8
DSL
Interface
10BaseT
Interface
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