F3200/NDU AS4428.1 Installation Manual
Document No: LT0255
Installation & Wiring
Page 5-32
5 July 2016
Issue 1.22
5.10
NDU INSTALLATION AND WIRING
5.10.1
INSTALLATION OF 19" NDU
The NDU is available in a 15U cabinet; in slimline surface, flush and deep cabinets, and as a
19" rack mount kit (FP0794). Mounting of the 15U and slimline cabinets is covered earlier
and the FP0794 must be installed as follows to meet the EMC requirements.
Using the RS485 board as a template, drill 4 x
3.5mm holes and deburr. Scrape away any
paint on the inside face and mount the metal standoffs using 4 M3 x 6 screws and
shakeproof washers. Mount the RS485 board onto the standoffs using M3 x 6 screws and
M3 crinkle washers. Mount the 4U inner door onto the 19" rack and earth to the cabinet
using the earth lead supplied.
Run the 10 way FRC from J7 (Network 1) on the Controller to J1 on the RS485 board,
keeping it tight against the cabinet metalwork by using FRC clamps. Run +24V to the J5
terminals on the Controller, and the network cables to J3 on the RS485 board. Connect any
screen on the network cables to the 0V ISO terminal on the RS485 board.
5.10.2
MCP CONNECTION
An NDU with a MAF/PSU board has an MCP connected to pins 3 and 4 of J6 on the
MAF/PSU board as standard.
A slimline NDU has the facility for connection of an MCP, but the MCP has to be mounted on
the wall, immediately adjacent to the NDU. Connection is made to pins 3 & 4 of J5, the 4
way "Spare Input Connector" on the NDU Controller/Display Bd. The wiring to the MCP is
detailed in Fig 5.10.1 for Australia.
An MCP should not be connected in NZ mode as an indicator is not included.
FIG 5.10.1
MCP CONNECTION FOR NDU, AUSTRALIAN MODE
RESISTOR
2k7 for MAF
10k for
Controller
TO NDU
CONNECTOR J5
on
CONTROLLER
for SLIMLINE or
J6 on MAF/PSU
