Specifications

December 2008 Page 19–11
Chapter 19. Party Line Data (PLD) Module
19
This puts the chassis into a configurable state,
allowing you to properly install the PLD
module and interface.
5. Install the “head” PLD module and
interface.
Install the “head” PLD module and interface,
using the instructions in the “Hardware
Installation and Connections” section earlier
in this chapter.
When you first install a Party Line Data
(PLD) Module in a live, unlocked chassis, the
red/green status LED is red. If the module is
functional, the status LED turns green within
20 seconds. If the module is non-functional,
the status LED stays red, even after 20
seconds have elapsed. This is the first accep-
tance test.
6. Configure the “head” PLD module.
Configure the PLD “head” module, including
the channel map assignment, using the
instructions in the “Configuring a ‘Head’
Module with External Addressing” section
earlier in this chapter. Remember that all three
PLD modules must have the same time slot.
Repeat Steps 2–6 for the “remote” and
“end” PLD modules/chassis.
Use the pin assignments in Table 19-1 through
Table 19-5 to wire the RS-232 cables between
your RTU(s) and the “remote” and “end”
interfaces.
7. Test the RTU attached to the “remote”
PLD module.
Using your RTU software (e.g., VALMET)
with the settings for your application, poll the
“remote” RTU (i.e., the one attached to the
“remote” PLD module).
Observe the TX and RX LEDs on the front of
the “remote” PLD module, as well as the test
results on your screen.
Repeat Step 7 for the “end” PLD module.
Upon completion of the acceptance test, the PLD
module will automatically be returned to
command mode , hang up and re-initialize for the
next call.
19.6 Drawings
The schematic for the Party Line Data (PLD)
Module is available upon request.
The location of each of the components on the
Party Line Data (PLD) Module are shown at the
end of this chapter.