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AIR

-485

®

 

Page 7 of 14 

Installation Manual 

November 2014 • Rev. 2.2 

Front: 

1)  LINK LED (Figure 1) 

– For a Master unit, if this LED is on SOLID, it indicates that the 

unit is successfully connected to at least one Slave.  For a Slave unit, this LED indicates 
that it is successfully connected to a Master. 

2)  TX\RX LEDs (Figure 1) 

– These LEDs indicate the transmission and receipt of data. 

3)  When the 

Air

-485

®

 Master is connected to a PC using USB, the modem is powered from 

the USB port.  Because of the limited current available 

on a PC’s USB port, only the two 

lowest power settings can be used when powering the modem using USB.  If a higher 
power setting is required, the optional plug-in power supply can be used.

 

4)  Switch 1 

– For a Point-To-Point network, set one 

Air

-485

®

 modem to Master and the 

other modem to Slave.  If a modem is connected to the PC using USB, that modem must 
be set to Master.  For a Multipoint network, set the unit connected to the PC using USB 
as the Master. If one is not connected to the PC using USB, set the one hardwired on 
the RS-485 bus as Master and set the field units as Slaves.

 

5)  Switches 2 and 3 

– The factory default setting is Low Power.  If the distance between the 

Master and Slave(s) is MORE THAN 100 feet, set the switches to HIGH POWER on 
both the Master and Slave(s).  Note that the Master and Slave(s) should always be set 
to the same power level.  If the distance from the Master to the Slave(s) is LESS THAN 
100 feet, start with both units set to LOW POWER and progressively increase the power 
level until an acceptable signal level is reached (see Signal Level Test below).  This is 
important because using a power setting that is too high for a Master and Slave in close 
proximity to each other will result in a poor communications link.

 

6)  Switch 4 

– Set to DOWN (default) for North America.  Set to UP for Australia.

 

7)  Switches 5 and 6 

– Used to set the hardwired baud rate.  The baud rate through the air 

is fixed and is 115 Kbps.

 

8)  Switch 7 

– Applies to Slave units only.  When this switch is UP, the unit is in Signal Test 

Mode.  In this mode, the Slave modem communicates with the Master to determine the 
signal strength. The three green LEDs display this relative signal strength (see Signal 
Strength note for Figure 2 on the following page).

 

9)  Switch 8 

– Must be DOWN.

 

Summary of Contents for AIR-485

Page 1: ...AIR 485 INSTALLATION MANUAL November 2014...

Page 2: ...age 2 of 14 Installation Manual November 2014 Rev 2 2 CA AIR485 Important Notice Do not operate the AIR 485 modem with the antenna removed This will cause irreparable damage which is not covered under...

Page 3: ...e surface MOBILE OBSTRUCTIONS Do not locate AIR 485 units where their line of sight to the other unit s can be obstructed by trucks or other mobile equipment TECHNICAL SUPPORT Prior to calling Technic...

Page 4: ...ems are configured through simple DIP switch settings see Figure 1 and 2 on the following pages Long Range Indoor Urban up to 400 m 1 300 feet depending on antenna height and RF interference Outdoor l...

Page 5: ...sive tools and power meters Multiple Network Support Because the range of the Air 485 modems can be up to 10 Km 6 miles line of sight it is possible that installations in close proximity could interfe...

Page 6: ...14 Installation Manual November 2014 Rev 2 2 Setup DIP Switch Settings There are two sets of DIP switches which must be set Figure 1 Front NOTE The RESET button must be pressed whenever a DIP switch s...

Page 7: ...RS 485 bus as Master and set the field units as Slaves 5 Switches 2 and 3 The factory default setting is Low Power If the distance between the Master and Slave s is MORE THAN 100 feet set the switches...

Page 8: ...and corresponding Slaves should all be on the same Network ID Setting the Network ID can be done using the DIP switches as shown in the diagram below 3 Signal Strength Signal Strength LEDs indicate th...

Page 9: ...Outdoor Installation For outdoor applications use the CA AIR485 N which consists of an Air 485 modem and a plastic NEMA enclosure This configuration is temperature rated for 40o C to 85o C 40 F to 18...

Page 10: ...AIR 485 Page 10 of 14 Installation Manual November 2014 Rev 2 2 Wiring Diagrams Wiring H1000 NOTE The EIA RS 485 standard does not permit T Tap or Star connections...

Page 11: ...AIR 485 Page 11 of 14 Installation Manual November 2014 Rev 2 2 Wiring SmartLock NOTE The EIA RS 485 standard does not permit T Tap or Star connections...

Page 12: ...AIR 485 Page 12 of 14 Installation Manual November 2014 Rev 2 2 Typical Air 485 Configuration for SmartLock Air 485 Without CLAUSB or CanLan Air 485 With CLAUSB CanLan on Remote Site...

Page 13: ...Supports maximum 30 panels Supports maximum 16 Air 485 slaves No communications between Air 485 slaves No Air 485 repeaters Works with most 2 wire RS 485 products NOTE The supported baud rates are 48...

Page 14: ...n Rate 115 2 Kbps Receiver Sensitivity 102 dBm 0 00001 BER 115 2 Kbps Transmission Output Power 10 250 500 and 1000 mW Power Requirement USB Power low RF output or 12VDC 1A high RF output Network Topo...

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