User's Manual

EMS Wireless Operator’s Manual
EkoLink II
43
Table 9. Hub Alarm Conditions.
The user may also log into the Hub and, using the Alarm command,
diagnose the alarm conditions.
4.8.2 External Alarms
Frequently the user may desire to interface alarms in the EkoLink II system
with a BTS or other systems. For this purpose, user configurable alarm
outputs are accessed using J26 and J27 found on the rear panel of the
EkoLink II Hub.
4.8.2.1 Master Hub External Alarm Relays, J26
Connector J26 supplies the user with relay contacts for custom alarm
configurations defined by the customer requirements. The dry contact relay
outputs are only available in the Master Hub with a Master Hub Controller
option installed. J26 pin descriptions are shown in Table 10. Contact
current should be limited to 2 Amps or less.
Pin Signal Description
1 ALARM-1-NO Alarm Relay #1 Normally-Open
2 ALARM-1-C Alarm Relay #1 Contact
3 ALARM-1-NC Alarm Relay #1 Normally-Closed
4 ALARM-2-NO Alarm Relay #2 Normally-Open
5 ALARM-2-C Alarm Relay #2 Contact
6 ALARM-2-NC Alarm Relay #2 Normally-Closed
Table 10. J26 Connector
A typical application circuit can be seen in Figure 10.