Off
Off
On
Off
On
On
576
On
On
Off
Off
On
On
640
Off
On
Off
Off
On
On
704
On
Off
Off
Off
On
On
768
Off
Off
Off
Off
On
On
832
On
On
On
On
Off
On
896
Off
On
On
On
Off
On
960
On
Off
On
On
Off
On
1024
Off
Off
On
On
Off
On
1088
On
On
Off
On
Off
On
1152
Off
On
Off
On
Off
On
1216
On
Off
Off
On
Off
On
1280
Off
Off
Off
On
Off
On
1344
On
On
On
Off
Off
On
1408
Off
On
On
Off
Off
On
1472
On
Off
On
Off
Off
On
1536
On
On
Off
Off
Off
On
1600
Off
On
Off
Off
Off
On
1664
On
Off
Off
Off
Off
On
1728
Off
Off
Off
Off
Off
On
1792
On
On
On
On
On
Off
1856
Off
On
On
On
On
Off
1920
On
Off
On
On
On
Off
1984
Off
Off
On
On
On
Off
2048
On
On
Off
On
On
Off
2112
Off
On
Off
On
On
Off
2176
On
Off
Off
On
On
Off
2240
Off
Off
Off
On
On
Off
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
twisted
pair 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.
12
Compact mDSL Modem
11
Compact mDSL Modem
Figure 6.
Compact mDSL Modem twisted pair line interface.
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
