APC NBRK0570 Specifications download pdf (Page 16)

NetBotz Rack Monitor 450/550/570 Installation and Quick Configuration Manual10

Connect Sensors and Sensor Pods to A-Link Ports

With a NetBotz 550 or NetBotz 570, you can cascade up to a combined total of twelve NetBotz Rack

Sensor Pod 150s (NBPD0150) and NetBotz Room Sensor Pod 155s (NBPD0155) plus up to a combined

total of eight Temperature Sensors with Digital Display (AP9520T) and Temperature/Humidity Sensors

with Digital Display (AP9520TH).

With a NetBotz 450, you can cascade up to a combined total of two NetBotz Rack Sensor Pod 150s

(NBPD0150) and NetBotz Room Sensor Pod 155s (NBPD0155), plus up to a combined total of eight

Temperature Sensors with Digital Display (AP9520T) and Temperature/Humidity Sensors with Digital

Display (AP9520TH).

You cannot cascade appliances. Use one appliance per system. A-Link is an APC proprietary CAN

(Controller Area Network) bus. Devices compatible with A-Link are not Ethernet devices and cannot

coexist on an Ethernet bus with other networking devices, such as hubs and switches.

Before performing this procedure, follow the installation instructions provided with the devices you are

cascading. Also, if you cascade more than ten sensor pods, be sure you have a supplemental power

supply (Power Supply 100-230 VAC/24 VDC—AP9505i) to connect to your system as directed in this

procedure. The NetBotz 570 does not require an external power supply.

1. Connect sensors and sensor pods to the

appliance as shown.

– Use CAT-5 (or equivalent) Ethernet

patch cables (



. Caution: Do not

use crossover cables.

– Connect to in and out ports as shown.

– The maximum combined length of all

A-Link cables must not

exceed 1000 m (3,280 ft).

2. Plug an A-Link terminator into the

unused A-Link port (



Caution: The first time a sensor pod receives power, it obtains a unique

identification address for communication over the A-Link bus. To avoid

communication problems, you must complete steps 1 and 2 before you connect a

supplemental power supply.

3. With a Rack Monitor 450 or 550, if you have cascaded ten or more devices, connect one

supplemental power supply (AP9505i) to the 24 VDC Input jack of the Rack Sensor Pod 150 or

the Room Sensor Pod 155 in or closest to the eleventh position.

(NBRK0450)

(NBPD0150)

Rack Sensor

Pod 150

NetBotz

NetBotz Rack

Monitor 450

(NBPD0150)

Rack Sensor

Pod 150

NetBotz

(AP9520TH)

Humidity

Sensor

Temperature/

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 35 36

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APC NBRK0570 Specifications Page 16

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