User's Manual

EX7100 Technical Manual – Monitoring and Diagnostics
©1999 Exicom Technologies (1996) Ltd 4-7 Issue 1 - February 2001
G) Repeat steps B and C. This will enter the Local Terminal’s new frequencies.
H) Repeat step E.
I) Use the down arrow key to make sure the →
→→
→ is next to Remote Tests. Press ‘Enter’.
J) Use the down arrow key to make sure the →
→→
→ is next to Change Freqs. Press ‘Enter’.
K) Enter the Second Level Password and press ‘Enter’.
The link will shut down briefly, and then attempt to set-up a link using the new frequencies.
If it is successful, the link will continue to operate using the new frequencies. If it is unable
to set-up a link (i.e. one or more frequencies is incompatible) the link will again shut down
briefly, then set-up the link using the old frequencies.
Note: If the frequency change is successful, the following message is displayed:
This message refers only to the local RF hop. If a multi-hop frequency change has
been attempted it is recommended that the user access the terminals again, to
check that the new frequencies are correct.
If the frequency change is unsuccessful, the following message is displayed:
The procedure will need to be repeated.
Note: Any traffic using the link during a Change Frequency command will be lost.
L) Use the Close Link procedure detailed in Section 4.3.2 to close down the Test Link.
4.4 EX7100 Internal Alarms
The EX7100 terminal generates the following internal alarms:
> Input Voltage (DC input voltage out of range: approx. 5% from shutdown voltages)
> Low RSSI (Adjustable alarm set point, refer to Section 4.4.4)
> Tx Power Drop (3dB drop below current menu setting)
> High VSWR
> High BER (Adjustable alarm set point, refer to Section 4.2.3)
> Modem Lock (Modems not synchronised)
> Synth Loss (Rx or Tx frequency not locked)
> Link Up Too Long
> Link Failed (Locally generated link failure)
Change freqs ok.
Using new freqs
Change freqs fail.
Using old freqs