Motorola MOTOTRBO SYSTEM PLANNER Specifications Page 174

  • Download
  • Add to my manuals
  • Print
  • Page
    / 221
  • Table of contents
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 173
System Design Considerations 165
November, 2008
To help demonstrate the use of the above equation on a more complicated IP Site Connect
system, take the following example system shown in the diagram below. This system has six total
IP Site Connect devices at three sites; five repeaters and one RDAC. Three of the repeaters have
both channels configured as wide area, one has a wide area channel and a local channel, and the
last repeater has two local channels. The routers are not utilizing Secure VPN.
Let us start with Repeater 1. Repeater 1 is an Master and has two wide area channels. The first
wide area channel has three peers and the second wide area channel has two peers. Note that
since Repeater 4 and Repeater 5 have local area channels, these are not considered wide area
channel peers. It is also important to remember that a peer does not include the device currently
being calculated.
Each calculation provides enough bandwidth to support an RDAC command during times of high
activity. This assumes that only one RDAC command occurs at a time and is not utilized often. If it
is expected that multiple RDAC applications will be performing commands on repeaters often and
simultaneously, one might wish to increase the bandwidth to support these types of activities.
The detailed bandwidth calculation for Repeater 1 is as follows:
Figure 4-11 Example System for Calculating Bandwidth Requirements without Secure VPN
Number of Wide Area Channel Peers* for Slot 1 3 x 15 kbps = 45 kbps
Number of Wide Area Channel Peers* for Slot 2 2 x 15 kbps = 30 kbps
Router
Router
Router
Network
WAC 2
Local Area
Network
Router = Firewall, NAT, or Router
WAC = Wide Area Channel
LC = Local Channel
RDAC = Remote, Diagnos tics , and Control.
Router
Local Area
Network
Wide Area
Network
WAC 1
WAC 2
WAC 1
WAC 2
WAC 1
LC 2
LC 1
RDAC
LC 3
WAC 1
Master
Repeater 1
Repeater 2
Repeater 3
Repeater 4
Repeater 5
Com puter
175 kbps
85 kbps
160 kbps
260 kbps
130 kbps
160 kbps
85 kbps
245 kbps
160 kbps
130 kbps
Page view 173
1 2 ... 169 170 171 172 173 174 175 176 177 178 179 ... 220 221

Comments to this Manuals

No comments