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CIU Installation, Operation & Diagnostics Edition: June 17, 2003
Page C-1
&Z3=XX Password to exit security mode
&C1 Carrier Detect is always True (MIU LED will be ON all the time
when Carrier Detect is ON.
&D0 DTR is ignored
&K0 No flow control
4: AT Command (MIU9.6L/485) Lease Line
ATE0Q1&C1&D0&K0&Q6\M0\H1W0
E0 Echo Command disables (no "AT" response to terminal)
Q1 Result Codes disable (no result codes return to terminal ring,
Connect (XXX)
&Q6 Normal mode (speed buffering)
\M0 Answer mode (for Remote (Slave)unit) local (Master) set for
originate \M1
\H1 Lease Line mode
\S1 Security mode (Not available for MIU9.6L)
&C1 Carrier Detect is always true (MIU LED will be ON all the time when
Carrier Detect is ON.
&D0 DTR is ignored
&K0 No flow control
Note &Q5 error detection and data compression can be used
If the host software will support EC
Switch Setting (MIUXXX/485) (Typical)
MIU S3 (external)
SW-1 Closed (ON) MIU is configured for RS485 Module (RS485 RxD
(Output) to Modem TxD (input))
SW-2, -3 & -4 Open (OFF)
2- Wire Configuration on PE485 module
SB-1 Closed (ON) DC Termination Open (OFF) AC Termination
SB-2 Closed (ON) Line Termination
SB-3 & -4 Closed (ON) 2- Wire
SA- 1 Open (OFF)
SA- 2 Closed (ON) TxD (transmit data) enables TX (Driver Output Enable) + 5ms
SA- 3 Open (OFF)
SA- 4 Closed (ON) Received data is disable with TX
enable (TxD)
4- Wire Configuration for PE485 module