ADCP-50-304 • Issue 19 • June 1999 • Section 4: PatchSwitch X.21

Table 4-3. B Alarm Time Delay Settings

ARC LENGTH

SWITCH POSITION

TIME DELAY

V

0

None

 

 

 

 

Shortest

1

55 msec

 

 

 

 

 

 

2

117 msec

 

 

 

 

 

 

 

 

3

242 msec

 

 

 

 

 

 

4

492 msec

 

 

 

 

 

 

5

992 msec

 

 

 

 

 

 

6

1.9 sec

 

 

 

 

Longest

7

3.9 sec

 

 

 

 

3.8B Alarm Enable/Disable

The alarm can be disabled by moving the jumper labeled ALMB/ALMB on the module board. The alarm is enabled when the jumper is in the ALMB position. The alarm is disabled when the jumper is in the ALMB position.

3.9PSM-832002 Module Quiescent State Indicators

Six LEDs located on the front panel indicate the presence of the quiescent states found in Table 4-4. When the module is powered up and not connected to a X.21 circuit LED number one will be on indicating a state one condition. This is like an idle state on a live X.21 circuit.

Table 4-4. Quiescent State Indicators

STATE

DTE

DCE

LED COLOR

1

Ready

Ready

Green

 

 

 

 

14

Controlled Not Ready

Ready

Red

 

 

 

 

18

Ready

Not Ready

Red

 

 

 

 

22

Uncontrolled Not Ready

Not Ready

Red

 

 

 

 

23

Controlled Not Ready

Not Ready

Red

 

 

 

 

24

Uncontrolled Not Ready

Ready

Red

 

 

 

 

4 POWER REQUIREMENTS

The PatchSwitch chassis requires a power supply (110 Vac/60 Hz, 220 Vac/50 Hz, or –48 Vdc input) to supply the modules with power. The power supply provides the correct dc output voltage and current for the PatchSwitch chassis.

Page 4-9

© 1999, ADC Telecommunications, Inc.