Section 2: Components20 Product DescriptionStation PCBs16 Aspire Digital Card (16ESIU) — P/N 0891014The 16ESIU PCB provides: 16 digital extension circuits (used for digital telephones, DSS consoles,1SLTAD adapters, 2PGDAD adapters) 4 extension status LEDs (each LED indicates status for 4 extensions - BL1 usedfor ports 1-4, BL2 for ports 5-8, BL3 for ports 9-12, and BL4 for ports 13-16). 1 PCB status LED 1 run/block switchThe CN102, CN103, CN202, and CN203 connectors each provide connection to 4 digital station ports.In order to program the system, an 8ESIU or 16ESIU PCB should be installed in slot 1. However, systemprogramming can be done using the PCPro or WebPro applications or through a VoIP telephone. The ESIUrequires one universal slot, with a maximum of 16 PCB’s per system.8 Aspire Digital Card (8ESIU) — P/N 0891015The 8ESIU PCB provides: 8 digital extension circuits (used for digital telephones, DSS consoles, 1SLTAD adapters, 2PGDADadapters) 2 extension status LEDs (each LED indicates status for 4 extensions - BL1 used for ports 1-4, BL2 forports 5-8). 1 PCB status LED 1 run/block switchThe CN102 and CN103 connectors each provide connection to 4 digital station ports.In order to program the system, an 8ESIU or 16ESIU PCB should be installed in slot 1. However, systemprogramming can be done using the PCPro or WebPro applications or through a VoIP telephone. The ESIUrequires one universal slot, with a maximum of 16 PCB’s per system.8 Analog Station Card (8SLIU) — P/N 0891017The 8SLIU PCB provides: 8 analog extension ports (used for on-premise analog telephones, fax machines,and analog modems) 8 extension status LEDs 1 PCB status LED 1 run/block switch 8 SW1 switches which provide constant current type battery feeding (set to either20mA [default] or 35mA) Connector for 8SLIDB Daughter Board Ring Generator Message Wait Lamping AbilityNote: When connecting a fax machine or analog modem, make sure to set Program 15-03-03 to‘1’ (special terminal) to avoid communication problems.