Nautel NX5 AM, Preinstallation Manual

Page: 67 / 89

NX5 PRE-INSTALLATION MANUAL PLANNING CONTROL/MONITOR CONNECTIONS
PAGE 1.8.8 VERSION 0.1 2015-08-01
Remote Outputs
Up to 16 remote outputs, that indicate either the presence of various alarms or the status of operator
controlled circuits, are available for remote monitoring on the
REMOTE I/O-B (A4J6B) 25-pin female D-
sub connector on the control/interface PWB (A4). The sources and active logic levels of these remote
outputs are preset at Nautel, but are also user-configurable.
See Table 1.8.3 on page 1.8.9 for a list of the remote output selection options, their descriptions and
their possible logic options.
See Table 1.8.4 on page 1.8.10 for a cross-reference between the remote output # (1 through 16) and its
associated input pin on the REMOTE I/O-B (A4J6B) 25-pin male D-sub connector on the control/
interface PWB (A4).
A switching device for each remote output, configurable through the remote AUI, provides the desired
active logic state, when a true condition exists.
For example, if a remote output is configured as Output Low When On (see Table 1.8.3 on page 1.8.9
for the specific text displayed on the remote AUI), then the remote output’s switching circuit will
provide a current-sink-to-ground when a logic true (on) condition exists and an open collector for a
logic false (off) condition.
If the remote output is configured as Output Low When Off (see Table 1.8.3 on page 1.8.9 for the
specific text displayed on the remote AUI), then the remote output’s switching circuit will provide an
open collector when a logic false (on) condition exists and a current-sink-to-ground for a logic true (off)
condition.
Each switching circuit must present impedance between the switching device and a dc voltage source
that limits current flow to no more than 30 mA. Each circuit's positive voltage source must not exceed
23 V dc. The in15 V supply is capable of providing 100 mA for all active status outputs. If you
require more current capability, use an appropriate external power supply.
Nautel provides the appropriate gender of mating connector (Nautel Part # JS28) and connector shell
(Nautel Part # JS35) in the ancillary parts kit to facilitate customer connections to the control interface
PWB’s D-sub connector, as applicable.