User Guide
Table Of Contents
- Cambium
- PMP 450 Planning Guide
- Accuracy
- Copyrights
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- Contents
- List of Figures
- List of Tables
- About This Planning Guide
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- Address:
- Chapter 1: Planning considerations
- Regulatory planning
- Network migration planning
- Site planning
- Link planning
- Analyzing the RF Environment
- Selecting Sites for Network Elements
- Diagramming Network Layouts
- Grounding and lightning protection
- Configuration options for TDD synchronization
- Data network planning
- Security planning
- Isolating APs from the Internet
- Managing module access by passwords
- Filtering protocols and ports
- Port Lockdown
- Isolating SMs
- Filtering management through Ethernet
- Allowing management from only specified IP addresses
- Configuring management IP by DHCP
- Planning for airlink security
- Planning for RF Telnet Access Control
- Forwarding Downlink PPPoE PADI packets
- Planning for RADIUS integration
- Planning for SNMP security
- Ordering components
- Chapter 2: Legal information
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- Cambium Networks end user license agreement
- Chapter 3: Reference information
PMP 450 Planning Guide
Attribute Meaning
Downlink Data Initially set this parameter to the same value that the AP has for its
Downlink Data parameter (percentage). Then, as you use the Frame
Calculator tool in Procedure 4, you will vary the value in this
parameter to find the proper value to write into the Downlink Data
parameter of all APs in the cluster.
PMP 450 Series APs offer a range of 15% to 85%, and default to 75%.
The value that you set in this parameter has the following interaction
with the value of the Max Range parameter (above):
The default Max Range value is 5 miles and, at that distance, the
maximum Downlink Data value (85% in PMP450) is functional.
Control Slots Set this parameter to the value of the Control Slot parameter is set in
the APs.
The Calculated Frame Results display several items of interest:
Table 53 OFDM Calculated Frame Results attributes
Attribute Meaning
Modulation The type of radio modulation used in the calculation (OFDM for PMP
450)
Total Frame Bits The total number of bits used in the calculated frames
Data Slots (Down/Up) This field is based on the Downlink Data setting. For example, a result
within the typical range for a Downlink Data setting of 75% is 61/21,
meaning 61 data slots down and 21 data slots up.
Round Trip Air Delay
(MaxRange)
This is the roundtrip air delay in bit times for the Max Range value set
in the calculator
Approximate distance
(MaxRange)
The Max Range value used for frame calculation
AP Transmit End In bit times, this is the frame position at which the AP ceases
transmission.
AP Receive Start In bit times, this is the frame position at which the AP is ready to
receive transmission from the SM.
AP Receive End In bit times, this is the frame position at which the AP will cease
receiving transmission from the SM.
SM Receive End In bit times, this is the frame position at which the SM will cease
receiving transmission from the AP.
SM Transmit Start In bit times, this is the frame position at which the SM will begin
transmission.
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pmp-0047 (March 2014)