Rev. C
7.11-3
HMXMU001018
10/06
7.11.3 Communications,
Continued
AF-232
The RD378 also supports AFSK data at RS-232 levels, known as AF-232. For this
format use connector PL7, and LK6 must be in position “2W”. LK1 is used to select
“Echo on” (B) or “Echo off” (A) for data. In Position “A” the site receiver’s own data is
transmitted in AF-232 format. This is also sent in position “B”, but in addition the receive
data is also transmitted.
Note:
The RD315 communications modules used to control the RD378 have a similar
link, and only one end can be used in the “echo on” mode. AF-232
communications contain full protocol for multi drop applications and is suitable for
optical fiber TX/RX. A multi drop ring loop fiber data system can be used to
communicate with up to 16 PTZ sites. Another option is to run optical fiber to the
first PTZ site and then normal 2-wire connection continues onto other sites.
SW2 Switch Settings
The use of the communications DIP switch SW2 is summarized in the table below.
Following is more details of the functions of each switch.
SW2 DESCRIPTION
ON
OFF FACTORY
1 Mode
Select
Master Slave OFF
2 Destination
Slave Master OFF
3 Poll
Mode Enabled Disabled ON
4 Not
Used
*ON
5
Site ID No
Ref table page 8
6
Site ID No
Ref table page 8
7
Site ID No
Ref table page 8
8
Site ID No
Ref table page 8
*SW2-4 MUST be set to the ON position.
SW2-1 Mode Select (master or slave)
The RD-378 should have this switch set to off to select slave mode.
SW2-2 Destination Type (master or slave)
The RD-378 should always have this switch set to off to select a destination of master.
SW2-3 Polling mode
The polling mode on all RD-378 site receivers and RD-315 control card on the
communications network should be set to the same (ON or OFF). Usually, polling is
switched ON and in this mode the RD-315 control module will sequentially communicate
with all known slave locations (PTZ site receivers) in the network on a continuous basis.
If the RD-378 does not respond to this polling, then this change will be reported to the
MAXPRO-Net system.
Polling is usually only switched OFF when the communications link is limited to simplex
only and no return data is expected.
Summary of Contents for MAXPRO-Net
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Page 168: ...Rev C 7 19 2 HMXMU001018 10 06 HONEYWELL Copyright Honeywell Subject to change without notice ...
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