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703 Bestlink™ SNMP/Web Adapter Option and
BestDock™ Communication Slot
Using Simple Network Management Protocol (SNMP), system administrators can easily monitor and manage
remote UPS units that protect key network devices like servers, routers, and hubs. Best Power’s SNMP
Adapter’s provide a self-contained link between the UPS and an Ethernet or Token Ring LAN/WAN. The
adapters allow the system administrator to communicate with the UPS even after the protected device goes
down. The SNMP adapter displays over 60 Management Information Base (MIB) variables to give the system
administrator information about UPS operation.
The BestDock™ communication slot in the upper left corner of the UPS allows quick installation of an optional
SNMP card, the Best Relay (AS/400) Card (see Section 704), or BestLink.
704 Best Relay (AS/400) Card
The Best Relay (AS/400) Card in the upper left corner of the unit allows your UPS to work smoothly with an
AS/400 system or to provide voltage-free contact closures for use with external alarm circuits.
Note: A plug with a link is supplied on the Best Relay (AS/400) card. This plug must be installed for normal
operation unless your UPS is using an external maintenance bypass switch. If the plug is not installed,
the load will be transferred to bypass.
The table below describes the connections for the Best Relay (AS/400) card.
Pin Number
Description
I/O
1
Normally open contact that closes if the UPS fails.
0
2
Normally open contact that closes if the UPS fails, the bypass is activated, input power is
absent, or battery power is low.
0
3
Remote Shutdown Ground (-).
4
Remote Sh. Activated by +5 to +12V being applied for one second.
1
5
Common connection for pins 1, 2, 6, 7, 8, and 9.
6
Normally open contact that closes when the UPS is in bypass mode.
0
7
Normally open contact that closes when the battery is almost discharged.
0
8
Normally open contact that closes when the UPS is on.
0
9
Normally open contact that closes when AC input power fails.
0
