CALAMP WIRELESS NETWORKS INC. MCUB5R Manual Do Utilizador
120 4010x-002
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Integra TR Technical Manual
DTE Integra
DTE
Integra
Figure 2 - Point to Point System
In such a system, the user’s equipment (DTE)
may be set up in either a peer-to-peer or a mas-
ter slave configuration. The Integra-T’s may be
left in their default configuration, which is:
may be set up in either a peer-to-peer or a mas-
ter slave configuration. The Integra-T’s may be
left in their default configuration, which is:
1. Both units set as “master”.
2. Both units set to deliver “all” data transmis-
sions.
Two other configurations that would work
equally well are:
equally well are:
1. One unit set to “master”, the other to “re-
mote”, delivery set to either “all” or “selec-
tive” data transmissions.
tive” data transmissions.
2. Both units set to “remote”, data delivery set
to “all”.
1.10.5 Point–Multipoint
System
A basic point–multipoint system is shown
below:
below:
remote
remote
remote
master
Figure 3 - Point–Multipoint System
If a half-duplex radio network is used (i.e. two
frequencies with the master station transmitting
and receiving on the reverse pair from the re-
motes) the Integra-TR’s may be left in their de-
fault configuration (station type “master” and
data delivery “all”). The master station can be
either full duplex or half-duplex.
frequencies with the master station transmitting
and receiving on the reverse pair from the re-
motes) the Integra-TR’s may be left in their de-
fault configuration (station type “master” and
data delivery “all”). The master station can be
either full duplex or half-duplex.
If a simplex radio network is used (i.e. a single
frequency for all stations) we recommend that
the master Integra-TR be set to “master”, the
remotes to “remote” and all units to “selective”
data delivery. This will prevent remote stations
from hearing each other’s responses. Use this
setting also if a full duplex repeater is used.
frequency for all stations) we recommend that
the master Integra-TR be set to “master”, the
remotes to “remote” and all units to “selective”
data delivery. This will prevent remote stations
from hearing each other’s responses. Use this
setting also if a full duplex repeater is used.
1.10.6 Extending a Landline (Tail
Circuit)
Integra-TR may be used to extend a landline
circuit (giving access to difficult locations, etc.).
This type of connection is called a “tail circuit”
and is shown in Figure 4 below. The tail circuit
assembly may be used in any of the network
types described in the preceding sections.
circuit (giving access to difficult locations, etc.).
This type of connection is called a “tail circuit”
and is shown in Figure 4 below. The tail circuit
assembly may be used in any of the network
types described in the preceding sections.
line
modem
line
modem
dedicated
line
Integra T
DTE
DCE crossover
cable
Figure 4 - Tail Circuit
Note: The line modems should be full duplex
units.
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
DE-9M
7
3
2
8
5
3
2
8
5
1
4
4
DE-9M
DCD
RXD
TXD
DTR
GND
RTS
CTS
RTS
TXD
RXD
CTS
GND
DCD
DTR
Figure 5 - DCE Crossover Cable for RTS-CTS mode
However, some point-to-point FDX landline
modems or line drivers may require the use of
DOX mode and an alternate pinout for two of
the above lines.
modems or line drivers may require the use of
DOX mode and an alternate pinout for two of
the above lines.
All other lines remain as shown in Figure 5
above.
8
CTS
RTS
7
1
DCD
DTR
4