Specifications

Page 19–8
FOCUS System Manual
each “remote” module in the chain, and then the
“end” module.
For complete instructions on configuring each
type of module and both types of addressing, as
well as any “on-the-fly” configuring you want to
do, please refer to the FCS online help facility
(Channel Module Configuration Overview >
Configuring the PLD).
19.4 Specifications
The Party Line Data (PLD) Module’s technical
specifications are shown in Table 19-7.
Figure 19–4.
Party Line Data (PLD) Module Status Indicators.
19.4.1 Status Indicators
This module has seven status indicators, as shown
in Figure 19-4. The red/green status LED is green
if the module is functional and red if the module is
non-functional. The remaining six LEDs,
beginning at the top left, work as follows:
RTS – This green LED, when lit, indicates that the
module is ready to send data.
CTS – This green LED, when lit, indicates that
the module is ready to accept data.
RX LOCK – This green LED indicates two situ-
ations. On a head and remote module in
communication with each other, the LEDs on each
will flash. Additionally, this LED on all other
Modules in the network will remain on indicating
that there is a communication between a head and
a remote PLD module.
INT ADDR – This green LED, when on steady,
indicates the module is set to “internal address”
mode. Additionally, this LED when flashing
indicates that the module is being programmed by
either the Maintenance module or a modem.
TX – This green LED, when lit, indicates that the
module is transmitting.
RX – This green LED, when lit, indicates that the
module is receiving.
19.5 Acceptance Test
As noted earlier, we recommend that you initially
install and test Party Line Data (PLD) Modules in
Catalog ID PLD
Interface One (1) RS-232C
Handshaking RTS
Supported CTS
DTR
DSR
Data Rate External/internal
19,200 bps asynchronous
with two stop bits
Indicators TX LED
RX LED
RTS
CTS
RX LOCK
INT ADDR
Status LED
Connector DB9 female DCE
Table 19–7.
Party Line Data Module (PLD) Specifications