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Operation XX017-01-00 Rev 702 V1400X-IDL Intelligent Distribution Line Control

Figure 15 shows the IDL with individual Station ports setup in a typical configuration using Receivers and

Domes as Output Devices.

The CPU can control all Output

Devices. Dome 1 can be operated even

when the V1311RB Receiver is

malfunctioning or not powered on

because this Receiver has a built-in

failsafe device. However, Receivers

that do not have built-in failsafe circuitry

must be powered on and operative for

successive daisy-chained devices to

operate. All Output Devices must have

unique addresses or operation conflicts

will occur.

Up to 10 Output Devices can be

connected to the IDL.

Figure 16 shows 3 IDLs daisy chained to a CPU. IDLs have 9 remaining STAT ports for I/O Devices, except

for the last unit which has 10 STAT ports available.

IDL 1 communicates directly with the CPU, passing

information from and to its connected I/O devices. IDL 2

communicates with the CPU through IDL 1, which

passes information from and to its connected I/O

devices. However, if IDL 1 is malfunctioning or is not

powered on, IDL 2 and IDL 3 will lose communication

with the CPU, because there is no failsafe circuitry

provided in the IDL. IDL 3 communicates as IDL 2 does,

through IDL 1.

NOTE: Do not connect Input Devices (Keypads/System

Consoles) and Output Devices (Receivers/Domes) to

the same IDL unit, as they will not operate correctly.

Figure 15

ical S

stem Setu

With Out

ut Devices

Figure 16

Typical System Setup With Daisy-Chained IDLs

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 24 25

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