Installing the Network Gateway Unit
(Continued)
8
1
Prepare one knockout at the top of the repeater and one knockout at the
base of the NGU.
2
Install the NGU and repeater with the repeater directly below the NGU and
with the prepared knockouts aligned.
3
Connect the repeater and NGU using a suitable
short
coupling through
the knockouts.
4
Route the cross-over ribbon cable (supplied with the NGU) through the
coupling. Connect one end to the RS232 connector on the NGM and the
other end to the RS232 connector on the repeater's termination board. A
ferrite is required immediately above the coupling.
5
Route the dc power wiring to the repeater through the coupling (use the
NGU's 500mA output).
1
Prepare one knockout at the top of the repeater and one knockout at the
base of the NGU.
2
Install the NGU and repeater with the repeater directly below the NGU and
with the prepared knockouts aligned.
3
Connect the repeater and NGU using a suitable
short
coupling through
the knockouts.
4
Route the cross-over ribbon cable (supplied with the NGU) through the
coupling. Connect one end to the RS232 connector on the NGM and the
other end to the RS232 connector on the repeater's termination board. A
ferrite is required immediately above the coupling.
5
Route the dc power wiring to the repeater through the coupling (use the
NGU's 500mA output).
Connecting an IDR-6A Network Repeater
To achieve the transmission path integrity required by EN54-2:
12.5.3, the repeater and NGU must be physically connected as
shown opposite to create a single enclosure.
To achieve the transmission path integrity required by EN54-2:
12.5.3, the repeater and NGU must be physically connected as
shown opposite to create a single enclosure.
CROSS-OVER RIBBON
TERMINATION
PCB
PSU
INTERFACE
PCB
NGU - SEE NGM
AND PSU3A TO NETWORK INTERFACE
PCB PROCEDURES
NGU TO IDR-6A REPEATER INTERCONNECTIONS
REPEATER - SEE 997-411
SECTION 2.8 FOR DETAILED
WIRING INFORMATION
NGM
DC POWER CONNECTION
COUPLING
COUPLING
1
Prepare one knockout at the top of the repeater and one knockout at the
NGU (illustration shows the base, but a top knockout can be used).
2
Install Isolated RS232 Boards in the repeater and NGU. Route the wiring
(max. 15m) between them through the knockouts (CTS and RTS are not
needed). A ferrite is required immediately adjacent to the knockout.
3
Route the dc power wiring to the repeater through the knockouts (use the
NGU's 500mA output).
Use appropriate glands on all knockouts.
1
Prepare one knockout at the top of the repeater and one knockout at the
NGU (illustration shows the base, but a top knockout can be used).
2
Install Isolated RS232 Boards in the repeater and NGU. Route the wiring
(max. 15m) between them through the knockouts (CTS and RTS are not
needed). A ferrite is required immediately adjacent to the knockout.
3
Route the dc power wiring to the repeater through the knockouts (use the
NGU's 500mA output).
Use appropriate glands on all knockouts.
NON-COMPLIANT LONGER-RUN CONNECTION
RIBBON
RIBBON
RS232 LINK
ISOLATED
RS232 PCB
ISOLATED
RS232 PCB
TERMINATION
PCB
PSU
INTERFACE
PCB
NGU - SEE ISOLATED RS232 PCB
AND PSU3A TO NETWORK INTERFACE
PCB PROCEDURES
NGU TO IDR-6A REPEATER INTERCONNECTIONS
REPEATER - SEE 997-411
SECTION 2.8 FOR DETAILED
WIRING INFORMATION
NGM
DC POWER CONNECTION
997-451, Issue 6 July 2006
