ESI Communications Servers Hardware Installation Manual
LED functions
The unit's various LEDs are designed to provide visual feedback as follows:
Power LED
The Power LED is located on the right side of the main board's faceplace, and is illuminated when power is
being applied to the system. This LED blinks periodically to indicate that the main processor is operational.
Port LEDs
The Port LEDs are located above their respective connectors on each installed port card. Each LED is
illuminated when any port on its associated port card is in use.
Note: Disconnecting a connector when its respective LED is lit will disconnect any of its ports that are in use.
Upon power-up, approximately five minutes are required for the system to configure. The Power and Port
LEDs will blink three times to indicate that the power-up sequence has been completed.
Note: When a DLC's LED is . . .
• . . . blinking, the T1/PRI circuit is out of service.
• . . . not lit at all, the T1/PRI circuit is in service but is idle.
• . . . lit solidly, the T1/PRI circuit and/or a station on the card are in use.
Memory Transfer LED
This LED is located inside the cabinet under the Memory Module, at the back of the main board. It serves as
a diagnostic aid by flashing as data is transferred to and from the Memory Module.
ESI Presence Management installation
For information on installing ESI Presence Management, see its Installation Manual (ESI # 0450-0792).
ESI Cellular Management installation
For information on installing ESI Cellular Management, see its Installation Guide (ESI # 0450-1155).
ESI Mobile Messaging installation
For information on installing ESI Mobile Messaging, see its Installation Guide (ESI # 0450-1231).
ESI SIP trunking installation
For information on installing SIP trunking, see the ESI SIP Trunking Installation Guide (ESI # 0450-1227).
F.15
ESI-1000, ESI-600, ESI-200