RAD Data comm ASM-20 - Manual (Page 34)

Chapter 3 Operation ASM-20 Installation and Operation Manual
3-4 Power Off
3.3 Operation
ASM-20 operates entirely unattended, except when the occasional monitoring of
LED indicators is required.
Test Activation
In order to verify that the ASM-20 is operating correctly, use the internal BERT and
analog loopback tests as described in
Bit Error Rate Tester (BERT) in Chapter 4 and
Local Test - Analog Loopback in Chapter 4 .
Operational Jumper and Switch Changes
If you need to reconfigure the ASM-20 for a different type of operation, the
jumpers and switches must be changed to correspond to the new operating mode.
Only authorized or qualified personnel should have access inside the
equipment. Disconnect the ASM-20 power cable before opening the top cover.
For guidance in repositioning the jumpers and switches, see
Setting Jumpers and
Switches in Chapter 2 . The equipment will become unsafe for connection to
telecommunication networks in some locations, if the signal ground is
disconnected from the chassis ground.
3.4 Power Off
To turn off an AC powered ASM-20:
Remove the AC power cord from the AC source.
To turn off a DC powered ASM-20:
Turn off the circuit breaker that supplies the DC mains.
Warning