ADCP-50-304 • Issue 19 • June 1999 • Section 2: Functional Description

Table 2-4. LED Status Indicators

LED STATUS INDICATOR

 

 

COLOR

 

SIGNAL DEFINITION

A

 

 

Red

 

DTE-A

 

 

 

 

 

 

 

 

 

B

 

 

Green

 

DTE-B

 

 

 

 

 

 

 

 

 

TD

 

 

Green

 

Transmitted Data

 

 

 

 

 

 

 

 

 

RD

 

 

Green

 

Received Data

 

 

 

 

 

 

 

 

 

DCD

 

 

Green

 

Data Carrier Detect

 

 

 

 

 

 

 

 

 

SQ

 

 

Green

 

Signal Quality Detect

 

 

 

 

 

 

 

 

 

RTS

 

 

Red

 

Request To Send

 

 

 

 

 

 

 

 

 

CTS

 

 

Red

 

Clear To Send

 

 

 

 

 

 

 

 

 

DSR

 

 

Red

 

Data Set Ready

 

 

 

 

 

 

 

 

 

DTR

 

 

Red

 

Data Terminal Ready

 

 

 

 

 

 

 

 

 

ALM

 

 

Yellow

 

Alarm On

 

 

 

 

 

 

 

 

Table 2-5. Alarm Time Delay Settings

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TIME DELAY

 

 

ARC LENGTH

 

50 HZ AND 60 HZ ENVIRONMENT

 

 

γ

 

 

1 µsec

 

 

 

 

 

 

 

 

 

Shortest

 

 

64 msec

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

256 msec

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.51 sec

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.02 sec

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8.19 sec

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

32.75 sec

 

 

 

 

 

 

 

 

 

Longest

 

 

65.5 sec

 

 

 

 

 

 

 

 

 

 

3.3Patch Module with A/B Switching and In-Line Patch Access (PSM-02)

This PS module operates similarly to the PSM-01 by providing patching, switching, and switch status indication, except it does not contain LED status indicators and alarm circuitry. A detailed circuit diagram of this module is shown in Figure 2-7.

Page 2-11

© 1999, ADC Telecommunications, Inc.