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49BChapter 2: Installation
TruVision DVR 20 User Manual
13
Camera Switch
setting
Legend Protocol
switches
5
Address
switches
0000
Wiring the KTD-405 keypad
The KTD-405 keypad uses RS-485 simplex wiring. The signal is transferred by a single
twisted pair line. An unshielded CAT5 network cable is recommended for normal
applications. Use a shielded CAT5 cable if the cables could be exposed to
interference.
The maximum number of TVR 20s that can be installed in one bus is 31, with a
maximum cable length of 1200 m. Both can be expanded using a signal distributor.
Both the first and the last device in series should be terminated with 120 Ohm
resistance to minimize line reflections. See Figure 6 below.
Figure 6: RS-485 bus serial wiring
1. KTD-405 keypad
2. I/O box
3. TVR 20
The cable length from box to device cannot exceed 2 m when using connector boxes.
See Figure 7 on page 14.
Содержание TruVision DVR 20
Страница 1: ...GE Security P N 1069892 EN REV 1 1 ISS 31MAY10 TruVision DVR 20 User Manual ...
Страница 8: ...48BChapter 1 Product introduction 4 TruVision DVR 20 User Manual ...
Страница 22: ...49BChapter 2 Installation 18 TruVision DVR 20 User Manual ...
Страница 26: ...50BChapter 3 eZ setup 22 TruVision DVR 20 User Manual ...
Страница 38: ...51BChapter 4 Operating instructions 34 TruVision DVR 20 User Manual ...
Страница 64: ...52BChapter 5 Basic operation 60 TruVision DVR 20 User Manual ...
Страница 114: ...54BChapter 7 Web Browser 110 TruVision DVR 20 User Manual ...
Страница 116: ...55BChapter 8 eZ DDNS 112 TruVision DVR 20 User Manual ...
Страница 122: ...118 TruVision DVR 20 User Manual China India Singapore Taiwan Southeast Asia E ges asiatechservice ge com ...
Страница 126: ...TVR 20 menu map ...