DPS Telecom D-PK-NGDLT, Руководство пользователя

Страница: 17 / 86

11
1 Integrated Temperature Sensor
The NetGuardian LT G2 features one internal temperature sensor, used to monitor the ambient temperature. The
internal temperature sensor measures a range of -40° F to 180° F (-40° C to 82.2° C) within an accuracy of about
± 2°.
5.2.6 D-Wire Sensor Inputs
The ports on your NetGuardian LT G2 labeled Sensor Input support up to 16 D-Wire sensors . Your
NetGuardian LT G2 powers and communicates with your D-Wire sensors via simple RJ-11 connections. You can
chain your 16 sensors to the D-Wire port on the back of the NetGuardian LT G2 in any order or combination.
The max cable length depends on the number of sensors daisy chained together. The cable lengths and
corresponding number of sensors can be seen in the table below.
Table 5.2.6 Maximum Cable Lengths
Note : Some sensors may consume 2 analog channels (the combined temp/humidity sensor, D-PK-DSNSR-12002,
for example).
Connecting D-Wire Sensors
Using a standard 6P4C, straight-through RJ-11 cable (part #D-PR-045-10A-01, pinout below), connect any
digital sensor port on the NetGuardian LT G2 to the In jack on a D-Wire sensor. Chain additional sensors to the
D-Wire sensor (using the same straight-through cables) from the Out jack on the previous sensor to the In jack on
the next (i.e. Out on sensor 4 to In on sensor 5).
Pinout for the NetGuardian LT G2 and D-Wire Sensor RJ-11 jacks
The D-Wire line of sensors includes temp/humidity, additional analogs, discretes, and more. Contact DPS at 1-800-
693-0351 for information about available D-Wire sensors.
For details about configuring your sensors though the web interface, see the Sensors section of this manual.