Allied Telesis AT-S39 - Manual (Page 240)

Section III: Web Browser Management
240
Trap Receiver 1
Trap Receiver 2
Trap Receiver 3
Trap Receiver 4
Use these selections to specify the IP addresses of up to four
management workstations on your network to receive traps from
the switch.
Note
The Enable SNMP Access check box in the menu controls whether
the switch can be remotely managed using an SNMP application
program. If the check box is empty, the switch cannot be managed
through SNMP. This is the default.
5. Click Apply to save your changes to the switch.
Changes are immediately activated on the switch.