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Chapter 2 Installation and Operation Installation and Operation Manual

2-8 Operating the ASM-40CD ASM-40CD Ver. 1.0

Powering ASM-40CD Up

 To power ASM-40CD up:

• Turn on the LRS-24 modem racks on both sides of the line.

After power-up, all LEDs are lit up for 3 seconds while the CPU initiates

the ASM-40CD module.

After synchronization between the two modems has been achieved, the

ASM-40CD module assumes the normal state according to the LED

indications in

Table 2-6

Normal Operation

After power-up the LEDs should assume the states as shown in

Table 2-6.

For

other LED indications, see

Table 2-5

Table 2-6. Normal LED Indications

ID Color State Notes

POWER Green ON ASM-40CD is powered-up

TD Yellow – TD LED state depends on local DTE transmission

RD Yellow – RD LED depends on remote DTE transmission

RTS Yellow – Indicates RTS from DTE

DCD Yellow ON Indicates signal detection on the line

SYNC LOSS Red – Loss of synchronization

TEST Red OFF

ERR Red OFF If ERR LED is ON – check alarm buffer to determine

problem

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RAD Data comm LRS-24 Spezifikationen Seite 32