Rad-data-comm ASM-20 Manuel d'utilisateur télécharger pdf (Page 39)

ASM-20 Installation and Operation Manual Chapter 4 Troubleshooting and Diagnostics

Communication Link Tests 4-5

RCVR

LOCAL

DATA

TERMINAL

XMTR

LOCAL ASM-20

REMOTE ASM-20

DATA

CLK

REMOTE

DATA

TERMINAL

REM

Pressed

Figure 4-4. Remote ASM-20 in Digital Loopback

Local Digital Loopback

This test is activated by pressing the DIG push button. It loops the received data

back to the remote ASM-20. (This test is equivalent to activating the remote

loopback from the remote ASM-20 – see Figure 4-5). The operator at the remote

end can determine the performance of the local and remote ASM-20 units, and

the lines between them.

The modem with the pressed DIG push button must be in RCV or ASY mode

RCVR

Pressed

LOCAL

DATA

TERMINAL

XMTR

LOCAL ASM-20

REMOTE ASM-20

DATA

CLK

REMOTE

DATA

TERMINAL

Figure 4-5. Local ASM-20 in Digital Loopback

Note

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Rad-data-comm ASM-20 Manuel d'utilisateur Page 39