Front Panel Switches: enabled (default)

Options: enabled, disabled

As the Front Panel Switches may be inadvertently toggled, or in the event that the end-user may not need to use the switches, the installer may disable the front panel switches. Set Switch S2-6 to determine whether the front-panel toggle switches are enabled or disabled.

S2-6

Option

On

Front Panel Switches Enabled

Off

Front Panel Switches Disabled

3.2.3 System Diagnostics

The System Diagnostics/Statistics screen looks like this:

NOTE: This screen is updated once per second.

The System Diagnostics/Statistics options and functions are described below.

aLocal Loop Idle (default)

The Local Loop is a bi-lateral loopback in which the data from the local DTE and the data from the remote unit are looped back to their respective sources (See Section 5.3). Activate this loop to test the each of the DTE’s connection to the Model 2701RC.

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The Local Loop test has four states:

Idle No user-controlled loopbacks are active.

LLThe Model 2701RC is in local loopback mode.

Off The Model 2701RC is in remote loopback mode or sending a pattern. Local loopback is disabled.

LocP The Model 2701RC is in Local Loopback mode, and is sending a test pattern.

bRemote Loop Idle (default)

The Remote Digital Loopback (RDL) test checks the performance of both the local and remote Model 2701RCs, as well as the communication link between them. Data from the local DTE is sent across the entire communication circuit and looped back to the local DTE.

The Model 2701RC Initiating a RL can be in one of the following states:

Idle No user-controlled loopbacks are active.

TxPr The Model 2701RC is sending the preparatory phase pattern lasting for approximately 2 -5 seconds.

WtAk The Model 2701RC is waiting for an acknowledgement from the remote unit. If the remote unit does not respond, the WtAk message will remain on the screen.

RxAk The Model 2701RC has received an acknowledgement from the remote unit.

Tout The Model 2701RC is waiting before entering the Remote Loopback test mode.

TM The Model 2701RC has successfully negotiated the Remote Loopback test and is in control of the remote unit. You may send a test pattern at this point by press- ing:

d <spacebar>

TxTr The Model 2701RC is sending a Terminate Loopback message to the remote unit. If the remote unit does not respond, the local unit will return to the Idle state.

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