Issue 4.5 August 2005
Nodes 5-37
햽
External BNC Antenna
This antenna should be connected to the BNC connector for optimum performance.
햾
On-board antenna link
When the jumper is across this link, as illustrated, the on-board 1/4 wave whip
antenna is utilised. On the BNC external antenna node, this jumper should be removed.
햿
Power supply and current consumption
Current Consumption - Quiescent State: 100mA, Maximum:
200mA.
헀
Ringnet communications
Nodes should be wired in a ring configuration, as illustrated. The maximum
permissible distance between nodes is 1Km (using Belden 9829). The interface uses RS485 in a ring topology. The
main controller therefore has two RS485 ports and completes the ring connection – see the following connection
diagram and cable type table.
Node Cabinet
This node has the same cabinet as the 8 Input/Output Node – see “Node Cabinet” on page 5-17 for details.
Additional Information
Method For Optimising RPA Performance
●
Fit an external antenna onto the HUA node if not already fitted.
●
Move the HUA node to a location where the signal strength is maximised as described in the following RPA
installation test procedure.
description
value
zone status
OPEN
4400
Zone open
CLOSED
2200
Zone closed
DISCON
30 000
Zone disconnected
SHORT
< 1400
Zone shorted
DC SUBS
Variable
DC Voltage substitution
I1
COM
I2
2K2
2K2
2K2
2K2
cable type
maximum distance
between nodes
Belden 9502 (screened)
500m
UTP Category: 5 (solid core)
1000m
Belden 9829
1000m
Содержание 3GS
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Страница 22: ...Hardware Overview 2 4 SYSTEM CONFIGURATION The following diagram shows a typical configuration of the system...
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Страница 222: ...3GS Version 5 User Guide 9 5 3GS SYSTEM KEYPAD DISPLAY...
Страница 254: ...3GS Version 5 User Guide 9 37 Some examples of Alert Messages...
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Страница 265: ...I n t h i s c h a p t e r HHT Overview 10 3 Main Menu 10 5 HAND HELD TERMINAL HHT 10...
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Страница 316: ...IntelliBell 14 8 SELF ACTIVATING BELL To connect a Self Activating Bell SAB to the 3GS system see the following diagram...
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Страница 339: ...I n t h i s c h a p t e r 3GS Overview 16 5 Installing 3GS 16 6 Installing the Dongle 16 7 Upgrading 16 8 16 PC SOFTWARE...
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Страница 367: ...I n t h i s c h a p t e r Introduction to CiTeC II 18 3 CITEC II INSTALLATION 18...
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