APP APP-601, Руководство по эксплуатации, Страница: 32 / 146

Installation Overview 3-8
11. Wire the recorder event (digital) channels. The event channels utilize a pluggable 16 position
connector. The maximum wire size for this connector is 14AWG. The standard input voltage
range is 45-250Vdc. Event Boards setup for 24Vdc are available as an option. Reference the print
set for any notes designating event channels that require 24Vdc or event boards that are
Internally
Wetted as opposed to our typical board that needs external wetting. If the events have a common
return and the customer provided that information to the factory, they will have jumpers between
the (-) event terminals.
*CAUTION* APP Engineering manufactures an event circuit board that is
internally wetted and is setup for dry contact connection only. Do not
connect an external voltage to this internally wetted event circuit
board!
The board will have labeling indicating that it is for dry input. Again,
reference the print set for electrical drawings and important notes.
12. Wire the recorder alarm outputs. The alarm outputs utilize a pluggable 16 position connector. The
maximum wire size for this connector is 14AWG. The alarm output contact is dry. The contacts
can break 0.5Amps @ 125VDC or 0.35A @ 250VDC.
13. Connect IRIG-B or 1PPS signal to the back of each DSP/IRIG circuit board (one board per
chassis) according to Point Assignment Record. The IRIG-B or 1PPS-IN/OUT connectors are
labeled and are standard BNC type connectors. This board can accept a modulated or un-
modulated IRIG-B signal, or 1PPS-IN signal. It also can output 1PPS signal. However, a board
jumper and software setting in the Point Assignment Record must be set to reflect the input type.
Unless a satellite-controlled clock is purchased with the system, an IRIG-B coax cable is not
provided.
The Chassis to chassis 1PPS signal can also be paralleled by using a BNC “T” to reduce latency.
SNTP can be used for the clock input via LAN Enet port to an internet SNTP clock source or
through an external SNTP clock.
14. Each chassis has one Ethernet RJ45 connector. On the Data Chassis, this connector is located on
the DSP/IRIG circuit boards. On the Computer Control chassis it is simply located on the back
panel and labeled DSP Enet. A shielded straight cable should be connected to each chassis and
routed back to the system Ethernet switch. If a system only consists of a Computer Control chassis
and a single Data chassis, an Ethernet switch may not have been provided. Simply make a peer-to-
peer connection between the two chassis. Typically, Ethernet cables are not provided with
distributed system.
15. Connect power cables to the Ethernet switch. A power cable has been provided. It should be
connected from Data chassis power supply circuit board (terminals 3&4) to the input terminal
block of the switch. The voltage is 12Vdc.
*CAUTION* It is possible that a specially requested Ethernet switch is used and it
may connect directly to 125VDC.
Reference the print set for electrical drawings and important notes.
16. In a distributed architecture, each Data chassis receives its own power input from your power
source (station battery or AC Input). Input voltage can be 86-373 Vdc or 88-264 Vac. Other
voltage input options are available. Power to the Computer Chassis should come from the main
data chassis. Terminals 5 & 6 on the data chassis power supply circuit board should be used to
power the computer control chassis.