TS2000
Node Unit (NU)
The NU comprises a small two part polycarbonate case containing a single pcb on which are terminal blocks. The unit is connected to the control network and is a control and connecting device for four circuits and four programmable outputs. It also contains a sounder output and a sounder mute output. It has no external controls hence it may be positioned at any convenient location as access is normally only required for maintenance. The unit is surface mounted and has cable entry points in the base top and bottom.
Remote Keypad Node Unit (REM)
The REM comprises a small two part polycarbonate case containing a pcb and the system controls consisting of:
1.A 15 key tactile keypad for entering data and programming the system. When in use the keypad is illuminated;
2.A liquid crystal display (LCD) of two lines of 20 characters each which provides system status information and gives directions when programming the system.
The unit is connected to the control network and is a control and connecting device for four circuits and four programmable outputs. The base contains a terminal block for all external connections and the unit is fitted with an internal sounder which provides local alarms and system status sounds. The unit is surface mounted and has cable entry points in the base on all four sides.
The REM’s are used to control and programme the system hence they must be positioned at suitable control positions with easy access.
Ward Control Unit (WCU)
The WCU comprises the same case as the NU and contains a single pcb on which are terminal blocks. If fitted the unit acts as a control and interface device to allow a designated Ward to be Set and Unset using its own dedicated Exit and Entry route and units. The WCU may be positioned at any location normally adjacent to its Exit/Entry devices and to its controlling REM or NU. The unit is surface mounted and has cable entry points in the base top and bottom. It contains controls for its Ward for setting the entry time, exit time and settling time and links to select the type of exit procedure.
System Control Network
The CP supplies power to and monitors all the connected NU and REM via a six or eight wire Control Network. Each connected unit is ’daisy chained’ to the Network and the maximum permitted distance between units is 100m but the furthest unit in a full system is limited to a total cable length of 1 km from the CP.
Network |
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Ward Control Circuits |
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Ward Control (A) |
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Last Exit Out (B) |
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Access Out ( C) |
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Network
Ward Control Outputs:
Ward Set Fail (A)
Ward Exit (B)
Ward Set (C)
Ward Alarm (D)
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12V Supply |
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Last Exit/Entry(LX Con)
Access (Acc Con)
Exit Terminate (ET Con)
Figure 3. Ward Control Unit Schematic
496529 Issue A | 7 of 20 | TS2000 |
