NEC UX5000, Hardware Manual

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2 - 40 Chapter 2
Chapter 2 - Blade Installation and Startup
2.5.2
Analog Station (4/8SLIU) Blade (Figure 2-21)
- P/N 0911040 and 0911044
The 4/8SLIU blade 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 blade 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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1 Blade Status LED
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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)
Per 19” chassis, there is a maximum of 80 digital or analog station ports allowed.
The SLIU can be installed in any universal slot and up to a maximum of 20 SLIU blades installed per 4-chassis
system. With CygniLink and a 7-chassis system, the maximum number of blades is 32.
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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.
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The SLIU and SLIDB are categorized as TNV2. With this designation, off-
premise wiring is not acceptable.
Any cabling to the SLIU blade must be
within the building - no outside cabling is permitted.
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Branch connection is not acceptable.