NEC DS1000, Описание продукта

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Section 2: Components
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Section 2: Components DS1000/2000 Product Description
8ATRU 8 Port Analog Trunk PCB (P/Ns 80011 and 80011A)
The 8ATRU PCB supports 8 analog loop start CO trunks. The PCB has a Mode
Switch (for taking the PCB out of service), a status LED indicating proper PCB
operation, and a port activity LED that indicates traffic on the PCB. You can
install 2 8ATRU PCBs in a Fixed Slot 4-Slot Cabinet, up to 3 8ATRU PCBs in a
Universal Slot 4-Slot Cabinet, and up to 6 8ATRU PCBs in an 8-Slot Cabinet.
Turn to DS2000 System Configuration on page 18 for more.
Each 8ATRU PCB also provides 2 power failure cut-through circuits. When com-
mercial AC power fails, the PCB automatically cuts through 2 trunk circuits to 2
power failure telephones.
The A series version of the 8ATRU PCB (P/N 80011A) also accepts Caller ID PCB daughter board
P/N 80013 for Caller ID applications.
Make a note of the following…
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In Fixed Slot systems, you can only install 8ATRU PCBs in the last 2 universal slots.
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In Universal Slot systems, you can install 8ATRU PCBs in any universal slot except the first.
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You can install either A or non-A series 8ATRU PCBs in 4-Slot Cabinets.
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You must install A series 8ATRU PCBs in 8-Slot Cabinets.
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You can only install Caller ID PCB daughter boards on A series 8ATRU PCBs.
4ATRU 4 Port Analog Trunk PCB (P/Ns 80010 and 80010A)
The 4ATRU PCB is identical to the 8ATRU PCB except that it supports only 4 analog loop start CO
trunks. Just like the 8ATRU PCB, the 4ATRU PCB has a Mode Switch (for taking the PCB out of
service), a status LED indicating proper PCB operation, and a port activity LED that indicates traf-
fic on the PCB. You can install 2 4ATRU PCBs in a Fixed Slot 4-Slot Cabinet, and up to 3 4ATRU
PCBs in a Universal Slot 4-Slot Cabinet. The number you can install in an 8-Slot Cabinet depends
on system configuration. See DS2000 System Configuration on page 18 for more.
Each 4ATRU PCB also provides 2 power failure cut-through circuits. When commercial AC power
fails, the PCB automatically cuts through 2 trunk circuits to 2 power failure telephones.
The A series version of the 4ATRU PCB (P/N 80010A) also accepts Caller ID PCB daughter board
P/N 92012 for Caller ID applications.
Make a note of the following…
●
In Fixed Slot systems, you can only install 4ATRU PCBs in the last 2 universal slots. Each
PCB provides connection for 4 loop start trunks, but uses up 8 analog trunk ports.
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In Universal Slot systems, you can install 4ATRU PCBs in any universal slot except the first.
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You can install either A or non-A series 4ATRU PCBs in 4-Slot Cabinets.
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You must install A series 4ATRU PCBs in 8-Slot Cabinets.
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8ATRU PCB P/Ns 80011 and 80011A at a glance —
Analog loop start trunks. . . . . . . . . . . . . . .8 4-Slot Fixed . . .U slots 3 and 4 only (2 max)
4-Slot Universal . . Any U slot but 1 (3 max) 8-Slot Universal . Any U slot but 1 (6 max)
You must install A series 8ATRUs (P/N 80011A) in an 8-Slot Cabinet.