Patton electronic 2073RC User Manual download pdf (Page 9)

Switches SW3-5: Front panel switch enabled/disabled

Use Switch SW3-5 to enable or disable the Model 2073RC Test Mode

(Local Loop, Remote Digital Loop, and 511/511E patterns).

Switch SW3-6: Response to DTE Request for Local and Remote

Loop

Use Switch SW3-6 to enable the Model 2073RC to enter Local Loopback

mode when pin interface (V.35 only) is raised. In the On position, the

Local Loopback may only be enabled manually by Switch SW3-6.

Switch SW3-4 Response to Remote digital (RDL) Loopback

Use Switch SW3-4 to enable or disable response to Remote digital Loop-

back by the local 2073RC when a RDL request is sent by a remote

device.

Switch SW3-3 Terminal (DTE) data sampled using the 2073RC

Transmit clock or External Clock (provided by V.35 DTEs only)

Use Switch SW3-3 to sample data from DTE using the 2073RC Transmit

clock (TC) or External Clock (XC))—normally Transmit clock (from

2073RC) is used.

ON Front Panel Test Mode Switches Disabled

OFF Front panel Test Mode Switches Enabled

SW3-6 Activation Description

On Disabled Model 2073RC ignores DTE requests to enter

Local Loopback

Off Enabled Model 2073RC enters Local Loopback when the

appropriate interface pin is raised (see appendix for interface

pinout)

SW3-4 Description

ON RDL Response Disabled

OFF RDL Response Enabled

ON TD Sampled with XC Source,

OFF TD Sampled with TC Source

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Patton electronic 2073RC User Manual Page 9