Nautel ND500II User manual

Information Sheet
IS03003
Dual ND500II -
Installation and
Operating
Instructions (in User
Supplied Cabinet)
IS03003
Original Issue 15 January 2004
Nautel Limited
10089 Peggy's Cove Road,
Hackett's Cove, NS, Canada B3Z 3J4
T.+1.902.823.2233 F.+1.902.823.3183
[email protected]
U.S. customers please contact:
Nautel Maine, Inc.
201 Target Industrial Circle, Bangor ME 04401
T.1.207.947.8200 F.1.207.947.3693
[email protected]
e-mail: [email protected]
www.nautel.com
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Dual ND500II (User Supplied Cabinet) – IS03003 Page 1
Information Sheet Issue 1.0
IS03003 Dual ND500II (User Supplied Cabinet)
Information Sheet
1. INTRODUCTION
This document identifies the information
specific to a dual (main/standby) ND500II
radiobeacon transmitter system installed in a
user supplied cabinet. It also provides the
electrical parts list and point-to-point wiring
information for the dual transmitter system.
Information provided includes theory of
operation, installation, start-up and
calibration/testing procedures, parts list,
wiring list, electrical schematics and
mechanical drawings (including dimensions).
2. CABINET REQUIREMENTS
The user supplied cabinet must be able to
house two ND500II radiobeacon transmitters
and an interface assembly (plus an optional
remote control unit if desired). The upper
transmitter is designated as transmitter A
(unit 1), while the lower transmitter is
designated as transmitter B (unit 2). The
Nautel supplied equipment includes:
-two ND500II radiobeacon transmitters
- a dual transmitter interface assembly
(unit 3)
- a computer remote control unit (unit 4,
optional)
- interconnecting wiring
Refer to figures 2 and 3 for electrical
schematics of the dual transmitter system.
Refer to figure 4 for recommended
equipment layout.
3. THEORY OF OPERATION
The theory of operation presented in the
ND500II instruction manual describes the
operation of both transmitters A (ND500II-
11x-x2x) and B (ND500II-01x-x2x). The
following provides a brief description for
transmitters that are connected in a
main/standby dual installation. See figure
2A or 2B for interconnecting detail. See
figure 3 for the electrical schematic of the
dual transmitter interface PWB (3A1).
3.1 Normal Operation: When the ‘main’
transmitter, selected by MAIN XMTR A/B
switch 3S2, is turned on and producing a
satisfactory RF output, the following will
occur:
(a) +15V will be applied from the main
transmitter (1A11J4-13 or 2A11J4-13),
through the dual transmitter interface
PWB (3A1J4-11 or 3A1J5-19) to the
standby transmitter (1A11J4-20 or
2A11J4-20), as the 'standby off'
control signal.
(b) If transmitter A is selected as the
'main' transmitter, the main/standby
relay in transmitter A's harmonic filter
will be energized and will connect
transmitter A’s output to the antenna
system.
(c) If transmitter B is selected as the
'main' transmitter, the main/standby
relay in transmitter A's harmonic filter
will be de-energized and transmitter
B’s output will be connected to the
antenna system.
(d) The selected 'main' transmitter will
provide +15V and the manually
controlled slewing commands (ATU
CONT) for the antenna system's
antenna tuning unit via the dual
transmitter interface assembly (unit 3).
(e) The selected 'main' transmitter will be
providing the 'audio out' (RMT AUD)
sample via the dual transmitter
interface assembly (unit 3).
(f) If transmitter A is selected as the
'main' transmitter, an open collector
SHTDN ALM (B)signal will be applied to
3A1J5-23 from A11J4-17 ('shutdown')
of transmitter B.

Page 2 Dual ND500II (User Supplied Cabinet) – IS03003
Issue 1.0 Information Sheet
(g) If transmitter B is selected as the
'main' transmitter, an open collector
SHTDN ALM (A) signal will be applied to
3A1J4-23 from A11J4-17 ('shutdown')
of transmitter A.
3.2 Shutdown/Changeover: If the
selected 'main' transmitter is shutdown
because an abnormal condition was sensed
for more than 20 seconds (maximum pre-
settable time period is 80 seconds), or for
any other reason, the following will occur:
(a) The +15V power supply in the
selected 'main' transmitter will be
switched off, removing +15V from
A11J4-13 of the main transmitter and
from A11J4-20 of the standby
transmitter via the dual transmitter
interface assembly (unit 3). The
standby transmitter will turn on.
(b) If transmitter A is selected as the
'main' transmitter, the main/standby
relay in the transmitter A's harmonic
filter will de-energize and route the
'standby' (B) transmitter's output to the
antenna system.
(c) If transmitter B is selected as the
'main' transmitter, the main/standby
relay in the transmitter A's harmonic
filter will energize and route the
'standby' (A) transmitter's output to the
antenna system.
(d) The 'standby' transmitter will provide
+15V and the manually controlled
slewing commands (ATU CONT) for the
antenna system's antenna tuning unit
via the dual transmitter interface
assembly (unit 3).
(e) The standby transmitter will be
providing the 'audio out' (RMT AUD)
sample.
(f) If transmitter A is selected as the
'main' transmitter, an open collector
SHTDN ALM (A)signal will be applied to
3A1J4-23 from A11J4-17 ('shutdown')
of transmitter A, causing a ground to
be applied to RMT CHGOV ALM outputs
3A1J1-8 and 3A1TB3-6, indicating the
standby transmitter is on.
(g) If transmitter B is selected as the
'main' transmitter, an open collector
SHTDN ALM (B)signal will be applied to
3A1J5-23 from A11J4-17 ('shutdown')
of transmitter B, causing a ground to
be applied to RMT CHGOV ALM outputs
3A1J1-8 and 3A1TB3-6, indicating the
standby transmitter is on.
4. INSTALLATION INFORMATION
Complete or verify the following
requirements are completed during
installation of the dual transmitter system.
NOTE
The following instructions include the
installation of two slide kits, Nautel Part
#158-8015 (one per transmitter). These slide
kits allow the transmitters to be pulled out of
the user-supplied cabinet to allow access to
the ND500II circuitry and support the weight
of the transmitter. Each transmitter weighs
approximately 41kg/90 lbs and cannot be
supported by only the transmitter’s front
panel mounting holes. If the slide kits are not
used, suitable provision must be taken to
support the transmitter in the rack. The
installation of the drawer mounting slides will
vary depending on the cabinet and may
require some modification to fit.
(a) Ensure the cabinet will not topple,
when the transmitters are extended on
their drawer slides, by securely bolting
the cabinet to its mounting surface.
(b) Install the drawer slides (from slide
kits P/N 158-8015) for both
transmitters. Figure 4 shows an
example of the installation. Ensure the
slides are secured to the cabinet, level
and positioned correctly to allow the
transmitters to be installed.
(c) Install the drawer slides on the
transmitters as shown in figure 4.
(d) Install transmitters A and B in the
cabinet (using the drawer slides)
ensuring transmitter A (ND500II-11x-
x2x) is located above transmitter B
(ND500II-01x-x2x). Figure 4 shows
the recommended orientation of
assemblies in the cabinet. Failure to
meet this layout may result in the
supplied cabling not fitting the cabinet.

Dual ND500II (User Supplied Cabinet) – IS03003 Page 3
Information Sheet Issue 1.0
(e) Install the cable harness (Nautel Part
# 158-8202) into the cabinet as
follows:
-Remove transmitter (A and B) rear
covers. Retain hardware to re-install
cover.
-Terminate the connectors on
transmitter A as follows:
Connect BNC connector P5 to A11J3
Connect D connector P6 to A11J4
Connect N connector P7 to A7J3
Connect wire # 45 to A11TB2-1
Connect wire # 46 to A11TB2-2
-Make the following connections if the
cabinet’s output connector is located
near cabinet lower right hand side:
Connect P10 to A7J2
Connect wire # 44 (core) to cabinet’s
RF output connector (center
conductor)
Connect wire # 44 (shield) to cabinet’s
RF output connector (shield)
If cabinet’s output connector is not
located near the cabinet’s lower right
hand side, do not terminate P10 or
wire # 44. Secure these wire ends to
the cable harness.
- Terminate the connectors on
transmitter B as follows:
Connect D connector P8 to A11J4
Connect BNC connector P9 to A11J3
Connect N connector P11 to A7J2
Connect wire # 47 to A11TB2-1
Connect wire # 48 to A11TB2-2
- Terminate the connectors on dual
transmitter interface assembly as
follows:
Connect D connector P3 to A1J5
Connect D connector P2 to A1J4
Connect BNC connector P1 to A1J7
Connect BNC connector P4 to A1J6
Connect wire # 45 to A1TB4-3
Connect wire # 46 to A1TB4-4
Connect wire # 47 to A1TB4-3
Connect wire # 48 to A1TB4-4
- Secure the cableform to the cabinet to
ensure the transmitters can be pulled
out on their slides and no wiring in the
cable can be pinched.
(f) If the computer remote control option
is installed, install cable harness
Nautel Part # 158-8212 as follows:
- Terminate the connectors on the
remote control assembly as follows:
Connect D connector P13 to A1J4
Connect wire 101 to TB1-1
Connect wire 103 to TB1-2
- Terminate the connectors on the dual
transmitter interface assembly as
follows:
Connect D connector P12 to A1J1
(g) Install the dual transmitter interface
assembly in the cabinet using the four
front panel mounting holes.
(h) Install the remote control unit in the
cabinet using the four front panel
mounting holes.
(i) Install the safety ground wiring using
green/yellow wire and lugs provided in
‘Safety Ground Wire Kit’ (Nautel Part #
158-8226) as follows:
- Transmitter A safety ground (located
at rear of transmitter) to cabinet safety
ground.
- Transmitter B safety ground (located
at rear of transmitter) to cabinet safety
ground.
NOTE
A cabinet safety ground should be located
near the RF output connector of the cabinet
to help protect equipment from lightning
damage.
(j) Connect AC line cords to transmitter A
and B. Termination is made at
transmitter rear.

Page 4 Dual ND500II (User Supplied Cabinet) – IS03003
Issue 1.0 Information Sheet
(k) If used, connect external 24 or 48
VDC power source wiring (see
ND500II manual for DC power source
options) to 3A1TB4-1 (+) and 3A1TB1-
2 (-).
(l) If used, connect external control/
monitor wiring to terminal blocks
(3A1TB1, 3A1TB2, 3A1TB3 and
3A1TB6) or D-sub connectors (3A1J1
and 3A1J8) as depicted in figure 1.
See figures 5 and 6 for dual
transmitter interface assembly/ PWB
detail.
NOTE
Refer to the associated ND500II transmitter
manual for instructions on enabling and
disabling the remote power trim feature.
If the optional remote control unit (unit 4) is
installed, refer to its service instruction
manual for detailed information regarding
remote control inputs/outputs.
(m) Connect a continuous, insulated 4
AWG copper wire or one-inch copper
braid between the station lightning/
safety ground and the cabinet's station
reference ground connection. Ensure
this wire does not contact any other
conductive surface of the cabinet.
(n) Connect the antenna system's RF
feed cable to the exterior portion of the
cabinet's RF output coaxial connector,
if present. If not, connect the feed
cable to A7J2 of transmitter A.
(o) Re-install rear covers on transmitters
(A and B) that were removed in step
(e).
5. INITIAL START-UP PROCEDURES
Transmitters A and B should not be fully
operated as a dual transmitter system until
each transmitter’s initial start-up procedure
(described in the ND500II instruction
manual) has been completed/ verified.
Verify the operation of each transmitter as
follows:
(a) Connect the dual system’s RF output
to a 250-watt dummy load.
(b) With both transmitters’ POWER
switches set to OFF, turn on the AC
power applied to the cabinet.
(c) Set transmitter A’s POWER switch to
ON. On the dual transmitter interface
panel, press LOCAL CONTROL and
SELECT A. Transmitter A should be
operating into the dummy load.
Perform initial start-up procedures as
described in the ND500II transmitter
manual.
(d) Set transmitter A’s POWER switch to
OFF and transmitter B’s POWER switch
to ON. On the dual transmitter
interface panel, press SELECT B.
Transmitter B should be operating into
the dummy load. Perform initial start-
up procedures as described in the
ND500II transmitter manual.
(e) Turn transmitters off, disconnect
dummy load and reconnect dual
transmitter for operation into the
system antenna.
(f) If the optional remote control unit (unit
4) is used:
- Set transmitters A and B and dual
interface assembly (unit 3) to remote
control mode, using their front panel
switches.

Dual ND500II (User Supplied Cabinet) – IS03003 Page 5
Information Sheet Issue 1.0
- Connect remote control unit to
associated master remote control unit
(see NAX219 service instruction
manual for interconnection detail
between slave and master).
- Verify remote control of transmitter
system is possible.
6. ON-AIR TRANSMITTER
SERVICING
The procedures in paragraphs 6.1 and 6.2
should be used when it is desired to
maintain one transmitter on-air while
servicing/testing another.
6.1 SERVICING TRANSMITTER B
WITH TRANSMITTER A ON-AIR:
If transmitter B is to be serviced and/or
tested with transmitter A on the air, proceed
as follows:
(a) Set dual transmitter interface
assembly’s MAIN TRANSMITTER –SELECT
switch to A.
(b) Set transmitter B's POWER switch to
OFF.
(c) Disable standby on/off control by
connecting a jumper between CR2-
Anode of transmitter B’s monitor PWB
(2A5) and ground.
(d) Disconnect the coaxial cable (P11)
from transmitter B's RF output coaxial
connector (2A7J2).
(e) Connect a 250-watt, precision, 50-
ohm, resistive dummy load to
connector 2A7J2 of transmitter B
using a suitable coaxial cable.
NOTE
The cable disconnected in step (d) is
tyrapped in the cable harness and should
not be used for connection between
transmitter B and an external dummy load.
A user-provided coaxial cable should be
obtained.
(f) Set transmitter B's LOCAL/REMOTE
switch to LOCAL.
(g) Set transmitter B’s POWER switch to ON
and perform servicing and/or testing
procedures on transmitter B.
(h) Upon successful completion of
maintenance procedures, set
transmitter B's POWER switch to OFF.
Reconnect cable removed in step (d)
and remove the jumper installed in
step (c).
(i) Set transmitter B's POWER switch to ON
and LOCAL/REMOTE switch to the
desired position.
6.2 SERVICING TRANSMITTER A
WITH TRANSMITTER B ON-AIR:
If transmitter A is to be serviced and/or
tested with transmitter B on the air, proceed
as follows:
(a) Set dual transmitter interface
assembly’s MAIN TRANSMITTER – SELECT
switch to B.
(b) Set POWER switch of both transmitters
to OFF.
(c) Disable standby on/off control by
connecting a jumper between CR2-
Anode of transmitter A’s monitor PWB
(1A5) and ground.
(d) Disconnect connector P11 from
transmitter B's RF output coaxial
connector (2A7J2).
(e) Disconnect connector P10 from
transmitter A's RF output coaxial
connector (1A7J2).
(f) Disconnect the antenna system cable
mating with the dual cabinet's RF
output coaxial connector or from
transmitter A’s RF output connector
(1A7J2).
(g) Connect the antenna system to
transmitter B’s RF output (2A7J2).

Page 6 Dual ND500II (User Supplied Cabinet) – IS03003
Issue 1.0 Information Sheet
(h) Connect a 250-watt, precision, 50-
ohm, resistive dummy load to
transmitter A's RF output coaxial
connector (1A7J2), using a customer-
provided coaxial cable.
(i) Set transmitter B's POWER switch to
ON.
(j) Set transmitter A's LOCAL/REMOTE
switch to LOCAL.
(k) Set transmitter A's POWER switch to ON
and perform servicing and/or testing
procedures on transmitter A.
(l) Upon successful completion of
maintenance procedures, set POWER
switches of both transmitters to OFF.
(m) Disconnect the dummy load from
transmitter A’s RF output coaxial
connector (1A7J2).
(n) Remove the antenna system cable
from transmitter B's RF output
connector (2A7J2) and reconnect it to
the cabinet's RF output coaxial
connector or to transmitter A’s RF
output connector (1A7J2).
(o) Restore coaxial cables to their original
connections.
(p) Remove jumper connected in step (c).
(q) Set POWER switch of both transmitters
to ON and set their LOCAL/REMOTE
switches to the desired position.
7. CHECK OF CHANGEOVER UNIT
Check the operation of the main/standby
changeover function as follows:
(a) Verify both transmitters are turned on
and their switches are set as specified
for 'Operating Setting' in table 4-1 of
the ND500II instruction manual.
(b) Verify transmitter A is producing the
desired RF output and transmitter B's
RF output is inhibited (MAIN
TRANSMITTER – SELECT switch set to A).
(c) Set transmitter A's KEYING switch (S1)
to OFF.
(d) After a time delay (between twenty
and eighty seconds), transmitter A's
RF output should be inhibited and
transmitter B should be enabled and
producing the desired output.
NOTE
If A11J4-21 of transmitter B is connected to
ground, transmitter B's 'standby 1' code
variation will be transmitted when transmitter
B turns on.
(e) Set transmitter A's KEYING switch (S1)
to ON.
(f) Reset transmitter A by setting its
POWER switch (S3) to OFF and then
return it to ON.

Dual ND500II (User Supplied Cabinet) – IS03003 Page 7
Information Sheet Issue 1.0
NOTE
If the dual transmitter cabinet's +15 VDC is used as voltage source for external SWR ALARM
and BATTERY STATUS circuits, connect circuit +VDC to 3A1TB2-8 (3A1J1-2).
If an external DC power supply is used as voltage source for external SWR ALARM and
BATTERY STATUS circuits, connect DC return to 3A1TB3-7 (3A1J1-6).
Figure 1 External Control/Monitor Interconnecting Wiring

Page 8 Dual ND500II (User Supplied Cabinet) – IS03003
Issue 1.0 Information Sheet
Table 1 - Wiring List – Dual ND500II Transmitters
SOURCE DESTINATION CODE SIZE REMARKS
P1-Centre P5-Centre 1 Core RG188A/U Coaxial Cable
P1-Body P5-Body 1 Shield -
P4-Centre P9-Centre 2 Core RG188A/U Coaxial Cable
P4-Body P9-Body 2 Shield -
P6-1 P2-24 3 White 22
P6-2 P2-13 4 White 22
P6-3 P2-4 5 White 22
P6-4 P2-5 6 White 22
P6-5 P2-14 7 Black 22
P6-6 P2-1 8 White 22
P6-7 P2-17 9 White 22
P6-8 P2-15 10 White 22
P6-9 P2-16 11 White 22
P6-11 P2-20 12 Black 22
P6-12 P2-21 13 White 22
P6-13 P2-11 14 White 22
P6-14 P2-7 15 White 22 1-Conductor
P6-15 P2-19 15 Shield 22 Shielded
P6-16 P2-8 16 Black 22
P6-17 P2-23 17 White 22
P6-18 P2-9 18 White 22
P6-19 P2-6 19 White 22
P6-20 P2-2 20 White 22
P6-21 P2-10 21 White 22
P6-22 P2-3 22 Black 22
P8-1 P3-10 23 White 22
P8-2 P3-25 24 White 22
P8-3 P3-4 25 White 22
P8-4 P3-5 26 White 22
P8-5 P3-17 27 Black 22
P8-6 P3-18 28 White 22
P8-7 P3-16 29 White 22
P8-8 P3-14 30 White 22
P8-9 P3-15 31 White 22
P8-11 P3-9 32 Black 22
P8-12 P3-1 33 White 22
P8-13 P3-19 34 White 22
P8-14 P3-7 35 White 22 1-Conductor
P8-15 P3-8 35 Shield 22 Shielded
P8-16 P3-20 36 Black 22
P8-17 P3-23 37 White 22
P8-18 P3-22 38 White 22
P8-19 P3-6 39 White 22
P8-20 P3-11 40 White 22
P8-21 P3-2 41 White 22
P8-22 P3-3 42 Black 22

Dual ND500II (User Supplied Cabinet) – IS03003 Page 9
Information Sheet Issue 1.0
Table 1 - Wiring List – Dual ND500II Transmitters (Cont.)
SOURCE DESTINATION CODE SIZE REMARKS
P7-Centre P11-Centre 43 Core RG58A/U Coaxial Cable
P7-Body P11-Body 43 Shield -
P10-Centre RF Output-Centre 44 Core RG58A/U Coaxial Cable
P10-Body Safety Ground 44 Shield -
3A1TB4-3 1A11TB2-1 45 White 10
3A1TB4-4 1A11TB2-2 46 Black 10
3A1TB4-3 2A11TB2-1 47 White 10
3A1TB4-4 2A11TB2-2 48 Black 10
User Cabinet -
Safety Ground
1-Safety Ground 49 Grn/Yel 14
User Cabinet -
Safety Ground
2-Safety Ground 50 Grn/Yel 14
Additional wiring when remote control unit (unit 4) is used:
P12-3 P13-36 100 White 22
P12-4 4TB1-1 101 White 22
P12-5 P13-24 102 White 22
P12-6 4TB1-2 103 Black 22
P12-7 P13-18 104 Black 22
P12-8 P13-21 105 White 22
P12-9 P13-26 106 White 22
P12-12 P13-20 107 White 22
P12-13 P13-25 108 White 22
P12-11 P13-2 109 White 22
P12-10 P13-1 110 White 22
NOTE: Destinations with a '1' prefix are located on transmitter A (upper).
Destinations with a '2' prefix are located on transmitter B (lower).
Destinations with a '3' prefix are located on dual transmitter interface assembly.
Destinations with a '4' prefix are located on optional remote control unit.

Page 10 Dual ND500II (User Supplied Cabinet) – IS03003
Issue 1.0 Information Sheet
Table 2 - Reference Designation Index – Dual ND500II Transmitters (User Cabinet)
USE
CODE
REF
DES
NAME OF PART
AND DESCRIPTION
NAUTEL
PART NO.
JAN/MIL/OEM
PART NO.
OEM
CODE
1 Transmitter A, NDB, 125W, DSB ND500II-11x-x2x See ND500II manual 37338
2 Transmitter B, NDB, 125W, DSB ND500II-01x-x2x See ND500II manual 37338
3 Dual Transmitter Interface Assembly NAX223 158-4050 37338
3A1 Dual Transmitter Interface PWB NAPI66 See Table 3 37338
♦4 Computer Remote Control Unit NAX219 See NAX219 manual 37338
P1 Connector, Coaxial, BNC, Plug, 50ohm,
Crimp
JDP24 225395-7 09482
P2 Connector, D-Sub, 25-Socket 183-5010 183-5010 37338
P3 Connector, D-Sub, 25-Socket 183-5010 183-5010 37338
P4 Connector, Coaxial, BNC, Plug, 50ohm,
Crimp
JDP24 225395-7 09482
P5 Connector, Coaxial, BNC, Plug, 50ohm,
Crimp
JDP24 225395-7 09482
P6 Connector, D-Sub, 25-Pin 183-5011 183-5011 37338
P7 Connector, RF Coaxial, Type N, Crimp JDP22 82-5375 02660
P8 Connector, D-Sub, 25-Pin 183-5011 183-5011 37338
P9 Connector, Coaxial, BNC, Plug, 50ohm,
Crimp
JDP24 225395-7 09482
P10 Connector, RF Coaxial, Type N, Crimp JDP22 82-5375 02660
P11 Connector, RF Coaxial, Type N, Crimp JDP22 82-5375 02660
♦P12 Connector, D-Sub, 25-Pin 183-5011 183-5011 37338
♦P13 Connector, D-Sub, 37-Socket JS27 162A10049X 71468
USE CODE ♦- Denotes item is optional. Used only when remote control unit (unit 4) is installed.
EXPLANATION:

Dual ND500II (User Supplied Cabinet) – IS03003 Page 11
Information Sheet Issue 1.0
Table 3 - Reference Designation Index – NAPI66 Dual Transmitter Interface PWB
USE
CODE
REF
DES
NAME OF PART
AND DESCRIPTION
NAUTEL
PART NO.
JAN/MIL/OEM
PART NO.
OEM
CODE
- Dual ND500II Interface PWB NAPI66 158-4010 37338
CR1 Diode, Power Rectifier, 200V , 3A QG31 1N5624 89473
CR2 Diode, Power Rectifier, 200V , 3A QG31 1N5624 89473
CR3 Diode, Power Rectifier, 200V , 3A QG31 1N5624 89473
CR4 Diode, Power Rectifier, 200V , 3A QG31 1N5624 89473
CR5 Diode, General Purpose, 200V, 0.1A QAP29 1N4938 07263
CR6 Diode, General Purpose, 200V, 0.1A QAP29 1N4938 07263
CR7 Diode, General Purpose, 200V, 0.1A QAP29 1N4938 07263
CR8 Diode, General Purpose, 200V, 0.1A QAP29 1N4938 07263
J1 Connector, Socket, D-Sub, 25 Pin,
Vertical Mt.
JS49 164A16689X 18310
J2 Connector, BNC, Receptacle, PWB Mt JF35 R141.426.000 0GP12
J3 Connector, BNC, Receptacle, PWB Mt JF35 R141.426.000 0GP12
J4 Conn, Plug, D-Sub, 25 pin, Vertical PWB JS43 163A16279X 31781
J5 Conn, Plug, D-Sub, 25 pin, Vertical PWB JS43 163A16279X 31781
J6 Connector, BNC, Receptacle, PWB Mt JF35 R141.426.000 0GP12
J7 Connector, BNC, Receptacle, PWB Mt JF35 R141.426.000 0GP12
J8 Conn, Socket, D-Sub, 9-Pin, Vertical
PWB
JS50 164A16669X C3057
K1 Relay, 24V, 4PDT, PWB Mount KC11 DS4E-M-DC24V 61529
K2 Relay, 24V, 4PDT, PWB Mount KC11 DS4E-M-DC24V 61529
K3 Relay, 24V, 4PDT, PWB Mount KC11 DS4E-M-DC24V 61529
K4 Relay, 24V, 2PDT, 1A, PWB Mount KC06 DF2E-DC24V 61529
S1 Switch, Rocker, SPDT, ON-ON SD58 M2T12TXW13-DA 63426
S2 Switch, Rocker, SPDT, ON-ON SD58 M2T12TXW13-DA 63426
TB1 Terminal Block, 9 Positions 161-3023-09 161-3023-09 37338
TB2 Terminal Block, 9 Positions 161-3023-09 161-3023-09 37338
TB3 Terminal Block, 9 Positions 161-3023-09 161-3023-09 37338
TB4 Terminal Block, 4 Positions, Sgl, Ins Tur,
20A
JR11 387403104 13150
TB5 Terminal Block, 3 Positions 161-3023-03 161-3023-03 37338
TB6 Terminal Block, 6 Positions 161-3023-06 161-3023-06 37338
XE1 Header, Shunt Post, 3 Pin 161-3008-03 161-3008-03 37338
XK1 Socket, Relay 163-5003-01 163-5003-01 37338
XK2 Socket, Relay 163-5003-01 163-5003-01 37338
XK3 Socket, Relay 163-5003-01 163-5003-01 37338
XK4 Socket, Relay 163-5003 163-5003 37338
NOTE: Prefix with 3A1 to obtain item’s full reference designation.

Dimensions = mm (inches)
Figure 2A - Electrical Schematic - Dual ND500II Transmitter System (User
Supplied Cabinet, no Remote Control Unit)
Version 1.0 Not to Scale Drawing No. S1580200 Sheet 1 of 1
STBY 1 (A)
RMT PWR TRIM (B)
STBY 1 (B)
STBY 2
GND
23 J1
3
4
P4J6
DENOTES TB1
DENOTES TB2
DENOTES TB3
DENOTES TB4
S1580200 V1
25 J1
1
11
1
P3
2
24 J1 J5
5
2
22 J1 4
3
8
16 J1
RMT PWR TRIM (B)
STBY ON/OFF (B)
GROUND
STBY 1 (B)
STBY 2 (B)
RMT ON/OFF (B)
GND (B)
4
21
22
3
12
20
P8
EXT RF INPUT (B)
A11J3P9
AC POWER
SOURCE
(XMTR B)
LINE
NEUTRAL
GROUND
DENOTES TB6
EXT RF INPUT (B)
EXT RF INPUT (A)
RMT ON/OFF
DC SUPPLY
RMT PWR TRIM (A)
RMT B MAIN
3A1
PART OF
EXT RF INPUT (A)
AC POWER
SOURCE
(XMTR A)
LINE
NEUTRAL
GROUND
17 J1
6
3
42
4
10 J1
-
11 J1
+
4
3
J3
1 3
5
J2
J4
DUAL XMTR
INTERFACE
PWB P2
P1
10
21
2
J7
STBY 1 (A)
RMT ON/OFF (A)
RMT PWR TRIM (A)
STBY ON/OFF (A)
STBY 2 (A)
GND (A)
DC SUPPLY (+)
3
22
4
21
20
12
P6
A11J3P5
SAFETY
LIGHTNING/
STATION
DC SUPPLY (-)
A7J3P7
*
A11TB2
2
14
19
16
15
A7J2 P11
2
17
1
XMTR A
A11J4
5
9
7
6
1
1
18
A11J4
8INCREASE (A)
DECREASE (A)
+15VDC ATU (A)
GND (A)
SERVO INHB (A)
RMT SHTDN ALM (A)
B+VDC (A)
+24VDC (A)
RMT SWR ALM (A)
13
23
9
24
15
16
17
1
14
GND (A)
RMT AUDIO (A)
RMT BTRY STAT (A)
19
8
6
7
11
13
A7J2 P10
U2
P6 GND (A)
+15VDC (A) 11
20
P2
DENOTES PART OF USER-SUPPLIED CABINET.
IF 'RF OUT' CONNECTOR IS NOT PRESENT, P10 IS
REMOVED AND 1A7J2 BECOMES SYSTEM'S 'RF OUT'.
*
1
J1
RMT AUDIO
20
J1
5
RMT AUDIO GND
PART OF
3A1
DUAL XMTR
RF OUT
2
J1
9
8+15VDC (A)
PWB
INTERFACE
*
5
J1
6
6
J1
GND7
J1
+15VDC (B)
7
6
8
J1
RMT CHGOV ALM
8RMT SWR ALM
9
4
J1
3
J1
7
J4
14
J1
19
J1
+24VDC (B)
9
15
J1
B+ VDC
+24VDC (A)
15
14
U2
A11J4
2
17
19
16
1
18
A11J4
5
7
6
9
2
1
A11TB2
XMTR B
2
11
13
8
P8 GND (B)
INCREASE (B)
DECREASE (B)
+15VDC (B)
+15VDC ATU (B)
SERVO INHB (B)
GND (B)
RMT SHTDN ALM (B)
18
16
17
14
9
19
15
P3
RMT AUDIO (B)
B+VDC (B)
+24VDC (B)
GND (B)
RMT SWR ALM (B)
RMT BTRY STAT (B) 6
22
10
20
25
23
7
8
INCREASE
4
J8
1
J8
+15VDC ATU
7
J5
1
5
ATU CONTROLGND
5
J8
6
J8
4
RMT SHTDN ALM
GND
13
J1
18
J1
1
9
J1
5RMT BTRY STAT
12
J1
RMT XMTR ON STAT
2
7
J8
2
3
DECREASE
SERVO INHB
NO
COM
NC
RMT SHTDN ALM
NO
COM
NC
RMT CHGOV ALM
5
4
6
3
2
1

Dimensions = mm (inches)
Figure 2B – Electrical Schematic - Dual ND500II Transmitter System
(User Supplied Cabinet w/ Remote Control Unit)
Version 1.0 Not to Scale Drawing No. S1580201 Sheet 1 of 1
3
4
J6 P4
J5
11
1
P3
2
5
S1580201 V1
A11J3P9
U2
AC POWER
SOURCE
LINE
NEUTRAL
GROUND
(XMTR B)
12
20
P8
RMT ON/OFF (B) A11J4
2
A11TB2
XMTR B
STBY 1 (B)
STBY 2 (B)
EXT RF INPUT (B)
GND (B)
3
22
4
RMT PWR TRIM (B)
STBY ON/OFF (B)
21
2
A11J4
9
7
11
13
8 14
9
19
15
16
SERVO INHB (B)
+15VDC (B)
DECREASE (B)
INCREASE (B)
GND (B)
P8 P3
6+15VDC ATU (B) 18
RMT SHTDN ALM (B)
2
17
5 17
23
25
B+VDC (B)
GND (B)
RMT BTRY STAT (B)
19
18
1
14
16
10
22
6
RMT SWR ALM (B)
GND (B)
+24VDC (B)
RMT AUDIO (B)
20
7
15 8
1
2
STBY 1 (B)
RMT PWR TRIM (B)
DC SUPPLY
2
21
10
3
5
4
J2
J4
PWB
EXT RF INPUT (A)
EXT RF INPUT (B)
J3
RMT PWR TRIM (A) 6
STBY 1 (A) 8
+
-
1
2
4
3
4STBY 2
GND 3
P1
P2
PART OF
DUAL XMTR
INTERFACE
3A1
J7
P6
A11J3P5
EXT RF INPUT (A)
AC POWER
SOURCE
(XMTR A)
LINE
NEUTRAL
GROUND
U2
A7J2 P10
8
13
GND (A)
INCREASE (A)
+15VDC (A)
11 20
11
15
P6 P2
A7J3P7
GROUND
SAFETY
LIGHTNING/
STATION
1
*
GND (A)
DC SUPPLY (+)
DC SUPPLY (-)
1
2
A11TB2
22
12
20
21
3
4
A11J4
XMTR A
RMT ON/OFF (A)
RMT PWR TRIM (A)
STBY ON/OFF (A)
STBY 2 (A)
STBY 1 (A)
A11J4
1
7
9
6
RMT SHTDN ALM (A)
DECREASE (A)
+15VDC ATU (A)
GND (A)
SERVO INHB (A)
5
17
1
14
23
16
17
24
9
RMT BTRY STAT (A)
RMT SWR ALM (A)
+24VDC (A)
B+VDC (A)
2
1
18
19
13
6
A7J2 P11
7
GND (A)
RMT AUDIO (A)
19
816
14
15
SERVO INHB
3
7
J8
3A1
PART OF
DUAL XMTR
INTERFACE
7 +24VDC (B)
+24VDC (A)
9
+15VDC (B)6
PWB
5
4
J8
J4
1
J8
DECREASE
ATU CONTROLGND
5
J8
2
4
6
J8
+15VDC ATU
INCREASE
1
DENOTES TB1
DENOTES TB2
DENOTES TB3
DENOTES TB4
DENOTES TB6
5 RMT AUDIO
9 RMT AUDIO GND
DENOTES PART OF USER-SUPPLIED CABINET.
IF 'RF OUT' CONNECTOR IS NOT PRESENT, P10 IS
REMOVED AND 1A7J2 BECOMES SYSTEM'S 'RF OUT'.
*
RF OUT
*
RMT CHGOV ALM
NC
COM
NO
RMT SHTDN ALM
NC
COM
2
3
6
5
4
6GND
NO
4
3
12
5
9
B+VDC
RMT XMTR ON STAT
RMT SWR ALM
RMT BTRY STAT
J1
1
CONTROL COMMON
J5 7
8
STATUS COMMON
RMT CHGOV ALM
13 RMT SHTDN ALM
P12
7 GND
8 +15VDC (A)
GND
B+VDC
9
7
21
18
25
P13
COMPUTER
REMOTE CONTROL
UNIT
4
P13
2
1
A1J4
RMT B MAIN
RMT ON/OFF
U1J3
1
2
26
36
20
24
A1J2
A1J1
A1J4
TB1 MODEM PHONE LINE
RS232 INTERFACE
RS422 INTERFACE
11
10
PART OF
3A1
DUAL XMTR
INTERFACE
PWB
MONITOR SYSTEM
OR
OR
TO MASTER CONTROL/
P12
J1

Dimensions = mm (inches)
Figure 3 - Electrical Schematic - Dual Transmitter Interface PWB (NAPI66)
Version 1.0 Not to Scale Drawing No. S1580174 Sheet 1 of 1
19 J4
7J4
8J5
7J5
RMT AUDIO (A)
RMT AUDIO (B)
S1580174 V1
+15VDC (A)
23 J4
23 J5
SHTDN ALM (A)
SHTDN ALM (B)
DENOTES TB6
DENOTES TB5
DENOTES TB1
DENOTES TB2
DENOTES TB3
DENOTES TB4
11 J4
4
6
8
K3:B
13
11
9
K3:C
1
16
K3:E
46
8K2:B
+24V
1
3
5
7
K3:A
CR7
13
11
9
K2:C
8
J1
8
RMT CHGOV ALM
11
J5 STBY ON/OFF (B)
+15VDC (A)
6
1
J1
2
J1
9
4
5
6
RMT AUDIO
NO
COM
NC
RMT CHGOV ALM
CR8
14 12
10K2:D+24V
35
6K4:A
10 8
7K4:B
1
12
1
K4:C
5
20
J1 RMT AUDIO GND
1N5624
CR4
B+VDC (B) 25 J5
1N5624
CR3
B+VDC (A) 13 J4
2
1
3S2:A
2
1
3S1:A
A
MAIN XMTR
CONTROL
XMTR SELECT
LOCAL
REMOTE
1
+24V
3
11 J1
RMT B MAIN
B
19 J5 +15VDC (B)
1N5624
CR2
+24VDC (B) 10 J5
7
+24VDC (A) 15 J1
24 J4
14 J1
1N5624
CR1
9
+24V
RMT SHTDN ALM
CR5
113
J1
1
16
K1:E
3
5
7
K1:A 1
12
J1
1
16
K2:ECR6
35
7K2:A
13
11
9
K1:C
4
6
8
K1:B
12
RMT XMTR ON STAT
9
4
J1 B+ VDC
1
2
3
NO
COM
NC
RMT SHTDN ALM
3
J1
19
J1
6
+15VDC (B)
STBY ON/OFF (A)2
J4
RMT ON/OFF
DC SUPPLY
RMT PWR TRIM (B)
EXT RF INPUT (B)
2
1+
-
STBY 1 (B)
1
2
25 J1
24 J1
STBY 2
J2
14 J5
15 J4
4
4
22 J1
10 J1
INCREASE (A)
INCREASE (B)
EXT RF INPUT (A)
RMT PWR TRIM (A)
STBY 1 (A)
6
17 J1
8
16 J1
J3 EXT RF INPUT (A)
RMT PWR TRIM (A)
STBY 1 (A)
21
J4
10
J4
J7
J6
1
3
4
2
J5
1
J5
+
-
DC SUPPLY
RMT PWR TRIM (B)
STBY 1 (B)
EXT RF INPUT (B)
STBY 2 (A)
STBY 2 (B)
RMT ON/OFF (A)
RMT ON/OFF (B)
INCREASE
1
J8
4
J4
5
J4
4
J5
5
J5
GND A
GND A
GND B
GND B 20 J5
3J4
3J5
8J4
1
1
6J4
17 J5
RMT SWR ALM (B)
GND (B)
GND B
GND A
RMT SWR ALM (A)
SERVO INHB (B)
SERVO INHB (A)
DECREASE (B)
DECREASE (A)
+15VDC ATU (B)
+15VDC ATU (A)
GND (A)
18 J5
14 J4
1J4
16 J4
17 J4
15 J5
16 J5
9J5
6J5
20 J4
9J4
22 J5
RMT BTRY STAT (A)
RMT BTRY STAT (B)
1
RMT BTRY STAT
GND
5
J1
8
6
J1
7
J1
9
J1
7
RMT SWR ALM
5
ATU CONTROL
3
2DECREASE
+15VDC ATU
GND
5
J8
4
J8
5
7
J8
6
J8
SERVO INHB
4
7
3
23
J1
18
J1
GND
GND

Dimensions = mm (inches)
Figure 4 – Assembly Detail/Dimensional Information – Dual ND500II
Transmitters (User Supplied Cabinet)
Version 1.0 Not to Scale Drawing No. M1580198 Sheet 1 of 1

Dimensions = mm (inches)
Figure 5 - Assembly Detail – NAX223 Dual Transmitter Interface Assembly
Version 1.0 Not to Scale Drawing No. M1580191 Sheet 1 of 1

Dimensions = mm (inches)
Figure 6 - Assembly Detail – NAPI66 Dual Transmitter Interface PWB
Version 1.0 Not to Scale Drawing No. M1580175 Sheet 1 of 1