Digital Station (8Esiu-S) Pcb (Figure 2-7); Led Indications - NEC Aspire S Manual

Digital Station (8ESIU-S) PCB (Figure 2-7)

The 8ESIU-S PCB provides:
● 8 digital extension circuits (used for digital telephones, DSS consoles, 1SLTAD adapters, 2PGDAD
adapters)
supports analog DID and single line telephone interface functions, such as Off-Premise Extensions).
●
1 extension status LED (indicates status for 4 extensions)
●
1 PCB status LED
The CN3 and CN4 connectors each provide connection to 4 digital station ports. The ESIU-S requires one
universal slot, with a maximum of 2 PCB's per system. Note that this PCB can not be installed in slot 7 or 8.
The 8ESIU-S consumes 8 ports ranging between ports 01-26. There must be enough available ports in order
for the Aspire system to recognize an 8ESIU-S PCB.

LED Indications

LD2
(PCB Status)
LD1
Aspire S Hardware Manual
Section 2: PCB Installation and Startup
The 8ESIU-S is not rated for OPX use. It is recommended that a 2DIOPU-S PCB be used instead (it
LED Function
Indicates the status of
the PCB.
Indicates the status of
terminals 1-8.
LED Status Operation Status
Green On Initializing
Green Flashing Initialization problem
(slow flash) occurred during self-check.
Green Flashing Operating normally
(100ms On/Off)
Green Off Downloading
Red On Terminal in use
Red Off Terminal idle
Section 2: PCB Installation and Startup ◆ 2-17
2