Analog Station (4/8Sliu) Pcb (Figure 2-23) - NEC UX5000 Hardware Manual

Chapter 2 - PCB Installation and Startup
2.5.2

Analog Station (4/8SLIU) PCB (Figure 2-23)

The 4/8SLIU PCB provides 4 (4SLIU) analog extension ports OR 8 (8SLIU) analog extension ports (used for
on-premise analog telephones, fax machines, and analog modems).
The 4SLIU and 8SLIU are not rated for OPX use. It is recommended that a 4DIOPU PCB be used instead (it
supports the analog DID and single line telephone interface functions, such as Off-Premise Extensions).
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1 extension status LED
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2 PCB status LEDs
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Constant current type battery feeding (25mA / -28Vdc)
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Feeding Polarity Reverse Ability
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Connector for 4/8SLIDB Daughter Boards
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Ring Generator (16Hz/20Hz/25Hz, 75Vrms -28Vdc)
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Caller ID Sending Ability
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Message Wait Lamping Ability (110Vdc)
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When connecting a fax machine or analog modem, make sure to set Program
15-03-03 to '1' (special terminal) to avoid communication problems.
The SLIU and SLIDB are categorized as TNV2. With this designation, off-
premise wiring is not acceptable. Any cabling to the SLIU PCB must be
within the building - no outside cabling is permitted.
Branch connection is not acceptable.
Chapter 2