User`s manual

RS-485 In/ Out Jack
z RS-485 Input (TXDI+, TXDI-) to receiver signal from keyboard, matrix, DVR or multiplexer through twisted pair
cable.
z RS-485 Output (TXDO+, TXDO-) sending out signal to next NDC through twisted pair cable.
z Recommend Data Cable: 2547 VW-ISC UL 24 AWG x 2C
z Transmission Distance: Max. 1 Kilometer
* When 24VAC PSU is used, the recommend cables are:
z UL SPT-1 VW-1 18AWG x 2C
z UL SPT-2 VW-1 18AWG x 2C
z UL SUT 105C VW-1 18AWG x 3C
The distance between 24Vac PSU and fast dome cannot exceed 200 meters.
Ethernet
z Standard IEEE 802.3 10 /100 Base-T port
Power/Status LED
z Power On: constant red.
z Emergency factory default (appendix C): Blinking orange (i.e. red mix with green).
Network LED
z Network Link (connected): Constant red.
z Networks have activities: Blink red.
z Data sent out from server: Blink green.
z Network disconnected: Constant slow blinking green.
z Upgrading software (appendix A): Constant slow to fast blinking of orange.
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