Telect MIX 56 User Manual

When you insert a plug into the monitor jack, the jack’s LED flashes for 30 
seconds, and then lights steadily. If the circuit is cross-connected, the cross-
connected network element’s LED flashes and lights, as well.  

You can connect a modem to the MIX 56 serial port to control the system 
remotely over an analog phone line. To do so, you must set the “Modem 
Detect” field on the System Interfaces screen to “Enabled” (Chapter 2) and 
install the modem according to the instructions in Chapter 2. When you 
have done so, activate the modem by pressing and holding the ACO switch 
until all LEDs light (LED test), then release the switch.

If you set Modem Detect to “Enabled,” but you have a PC rather than a mo-
dem connected to the MIX 56 serial port, the modem detect code 
“+++ATQ” appears on the screen at the current location of the cursor when 
you release the ACO switch. To clear the “+++ATQ,” switch to another 
MIX 56 screen.

The modem automatically detects baud rate at the MIX 56 serial port when 
the modem is off-line. Once the modem is on-line, it will not change its 
baud rate. If you change the MIX 56 baud rate (System Interfaces screen) 
while the modem is on-line, you create a baud mismatch between the MIX 
56 and modem, which shuts down the connection. The only way to regain 
the connection is to “hang up” at the remote modem, press the ACO switch 
until the LED test starts, release the switch, and reestablish the link from 
the remote end.

To disconnect a modem, see the instructions in Chapter 2.

MONITORING A NETWORK

 

ELEMENT’S OUTPUT SIGNAL

LED of the cross- 
connected network
element also lights 

LED lights when monitored

M

O

I

M

O

I

M

O

I

(cross-connected to 
Network Element #1)