FAQ's

If I can't get my 1095 mDSL modems to work, what should I try first?

When you encounter a problem with the 1095s, try the following steps:

First to confirm that the units are operating properly, you should connect two units using a Point to Point configuration. You should connect the units using a two-wire twisted pair cable, pins 4 and 5.
Next turn both units off, set switches S3-7 OFF. This will reset the units Software to factory defaults.
Power up both units for about 2 seconds
Power off both units and return S3-7 to the ON position
The units are now ready to accept the switch setting that you set.
Next both units must be configured for the same data rate. Factory default is 768Kbps, Switch S3 - 1 ON, S3 - 2, 3, and 4 OFF S3 - 5 and 6 ON.
Now one unit must be configured for Central Office ( CO) INTERNAL clock ( S2 - 6 and S2 - 7 ON ), Next set the other unit for Customer Premises (CP) RECEIVE RECOVER clock ( S2 - 6 ON and S2 - 7 OFF ).
Check the front panel Test Mode Switches, they should be in the NORMAL position.
Turn on the power to the model 1095’s, after 30 Seconds the NS ( No Signal ) LED’s should turn OFF, CTS (Clear To Send ), CD ( Carrier Detect ) and DTR ( Data Terminal Ready ) LED will turn Green.
After the (NS) LED turn off, and CTS, CD and DTR have turned Green, select a unit to operate as the LOCAL modem, the other modem will be the REMOTE. Move a TEST MODE switch on the LOCAL modem to REMOTE, the TM (Test Mode) LED will light on both units.
Next select the 511E test mode on the LOCAL modem, the ER (ERror) led on the LOCAL modem will now FLASH at about a one second rate. After 45 seconds the Pattern Generator will turn off, the ERror LED will flash at a high rate until the 511 Test switch is turned off.
Return the Test Mode Switches to the NORMAL po

If I can't get my 1092 iDSL modems to work, what should I try first?

When you encounter a problem with the 1092s, try the following steps: The testing of the Model 1092 and 1092A are the same except for the 2w/4w selection for the model 1092A.

First do a Hardware Reset, turn the power off, set configuration switch (S1-6 and 7 "OFF")
Turn on the power for 5 or 10 seconds. Turn the power OFF and reconfigure the model 1092A using the following configuration.
One unit must be set as Master the other unit as Slave.
MASTER UNIT SETTINGS
- S1-1 "ON"
- S1-2 "OFF"
- S1-3 "ON"
- S1-4 and 5 "OFF"
- S1-6 and 7 "ON"
- S1-8 "ON"
- S2-1, 2, and 3 "OFF"
- S2-4 "ON" (4-wire operation) "OFF" (2-wire operation)
- S2-5 "OFF"
- S2-6, 7 and 8 "ON"

SLAVE UNIT SETTINGS

S1-1 "ON"
S1-2 "OFF"
S1-3 "ON"
S1-4 and 5 "OFF"
S1-6 "ON"
S1-7 "OFF"
S1-8 "ON"
Switch S2 settings are the same as the MASTER UNIT.

Connect the twisted pair circuit between the model 1092A's, turn on the power, after 10 to 15 seconds the NS (no signal)- LED will go off and the CD (carrier detect) LED will turn GREEN.
Do a REMOTE DIGITAL LOOP-BACK test using the 511/511E test switch (Page 30 of the user manual).

How do I upgrade the software of a 1095 mDSL modem?

You will need a cable to connect the Model 1095 control port to a DB-9 PC serial port and a flash image (xxxxxx.IMG). The cable should be wired:

RJ - 45		DB - 9
Pin 8	RTS	Pin 7
Pin 7	CTS	Pin 8
Pin 6	TD	Pin 3
Pin 5	RD	Pin 2
Pin 4	SG	Pin 5

Then follow these instructions to load the code into the 1095 Flash Memory.

Copy the (xxxxxx.IMG) to a TEMP file on the PC that will be used to program the Model 1095.
Use Windows HyperTerm, or some other Terminal Emulation Program set for 9600 bps, NO parity, 1 stop, X-ON/ X-OFF.
Turn the Model 1095 power OFF
4. Set configuration Switch S2- 6 and 7 OFF (Reserved)
Turn ON the Model 1095 Power, The TM and ER LED will turned on. The 1095 will send "BEGIN" to the PC.
From Hyper Term select Send Text File on the Transfer menu.
Open the image File, xxxxxx.IMG. You will see DOT's on the PC screen (about 4 lines of DOT's.) Next the 1095 will send COMPLETE ERRORS : 00

What is Octet Mode in the IM1/F for the 1092?

Octet Mode is a special protocol is used between the model 1092s. The connection to the G.703 line is still 64Kbps and the connection between the Model 1092s must be set for 128Kbps. Octet mode use bipolar violations to define the start of an 8 bit byte, The IM1/F recognizes the violation and converts the signal into two Bytes (16 bits), one framing byte and one data byte to send to the receiving unit (frame+Data) (frame+Data), the receiving IM1/F strips the frame byte and pass the Data and the bipolar violation to the G.703 interface at 64Kbps. For Byte timing to function properly, requires each 1092 to have IM1/F modules.

Leased Line Modems