Safran NetClock/NENA Option Kit User manual

Part Number: 2400-5000-0705 Page 1of 7
Revision: 2 30 August 2023
ELECTRONICS & DEFENSE
NetClock/NENA Breakout Cable
For SecureSync 2400 Model
Product Option Guide

SecureSync 2400 NetClock Option Guide, Rev 2
Page 2of 7
Introduction
The NetClock/NENA Option is a user-selectable kit for the SecureSync 2400 that serves as a drop-in replacement for the
NetClock 9483 NENA-Compliant Master Clock interfaces.
The NetClock/NENA Option Kit uses the 15-pin multi-I/O connector (found on the main board of the unit), and the 1204-
0F Alarm Relay option card, to connect to the NetClock/NENA Breakout Cable. This cable provides the same three output
interfaces as found on the NetClock 9483: BNC IRIG Out, RS-232 on DB9, and RS-485 and Alarm Relay on a shared terminal
block, allowing users to swap in the 2400 system with seamless integration to end devices.
Components
The NetClock/NENA Option Kit (2400-0000-0705) includes the following materials:
•NetClock/NENA Breakout Cable (CA08R-0000-0010)
•NetClock/NENA Option Manual (this document, 2400-5000-0705)
Also required (must be ordered separately):
•Alarms/Relay Option Card (1204-0F):
The 1204-0F card can be installed in any open slot. The terminal block connector will be used in conjunction
with the NetClock/NENA Breakout Cable. For information on this card, see https://safran-navigation-
timing.com/manuals/2400/Content/NC_and_SS/Com/Topics/OPTCARDS/OC_List/Alrm_Rlay_O.htm
Installation
1204-0F Option Card Installation
For customer installation of the 1204-0F card on a SecureSync 2400 unit already in your possession, follow the instructions
in the Option Card Field Installation Guide to ensure that you safely install the 1204-0F. The Option Card Field Installation
Guide is shipped with option cards ordered separately from SecureSyncs, and is also found here:
https://safran-navigation-timing.com/document/option-card-installation-guide/
Warning: Field installation of option cards by end users is potentially dangerous and requires strict adherence to all
safety warnings and cautions. Personal injury and permanent equipment damage can occur. Do not attempt to install the
card without referring to the Option Card Field Installation Guide.
(If you are receiving this kit with an order for a SecureSync 2400 and a 1204-0F card, your 1204-0F card will be already
installed in your unit).

SecureSync 2400 NetClock Option Guide, Rev 2
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NetClock/NENA Breakout Cable Installation
Once a 1204-0F card is installed in your SecureSync 2400, you can attach the NetClock/NENA Breakout Cable (see image
below).
1. On the NetClock/NENA Breakout Cable, connect the terminal block marked CONNECT TO 1204-0F to the terminal
block on the 1204-0F card on the rear panel of the SecureSync.
2. Connect the HD15 male marked CONNECT TO 2400 I/O on the NetClock/NENA Breakout Cable to the multi-I/O
connector on the main board of the SecureSync 2400.
3. Log on to the Web UI to further configure the Pin Layout. Navigate to MANAGEMENT > Network > Pin Layout. From
here, you can either:
a. Upload a Pin Layout configuration:
i. Download the preset pin layout configuration file here:
https://safran-navigation-timing.com/document/securesync-2400-netclock-nena-breakout-cable-
pinout/
ii. In the Actions panel of the Pin Layout page, select Upload Layout and upload the
netclockcablepins.json file.
iii. In the Actions panel, select Ally Changes.
Caution: Do not skip this step, or your changes will not take effect.
b. OR, you can manually adjust your pin layout settings using the following steps:
i. To eliminate later confusion, first delete four unnecessary signals:
DELETE Pins 1,2, IRIG_IN DCLS
DELETE Pins 3, 13, 8 HQ_OUT RS485
DELETE Pins 15 ATC_IN RS232
DELETE Pins 4,14, 9 HQ_IN RS485

SecureSync 2400 NetClock Option Guide, Rev 2
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ii. Click on the plus sign in the upper right corner, and
ADD pins 3, 13, & 8 to ATC_OUT | RS485 (as in the following figure) and click Submit.
Note: If your setup requires an IRIG AM output rather than DCLS, you will also need to ADD pins 6 &
7 to IRIG_OUT | RS485 to change the signal.
iii. Your pin layout should now be configured like the following image:
iv. In the Actions panel, select Apply Changes to confirm your new pin layout.
Caution: Do not skip this step, or your changes will not be reflected on the unit.

SecureSync 2400 NetClock Option Guide, Rev 2
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4. Additional Web UI configuration may be necessary based on your application of the inputs and outputs. You can
select each output to change specifications (on your IRIG or ASCII signals, for instance). See the following image for
reference.
In the Web UI, the following interfaces apply to the NetClock/NENA Breakout Cable:
1. IRIG-OUT (found on the BNC connector of the NetClock/NENA Breakout Cable).
2. ASCII OUT RS232 (found on the DB9F connector of the NetClock/NENA Breakout Cable).
3. ASCII OUT RS485 (found on the terminal block connector of the NetClock/NENA Breakout Cable).
4. ALARM/RELAY signals Alarm Output 0 and 1 (found on the terminal block connector of the
NetClock/NENA Breakout Cable. Note: in this setup, Alarm Output 2 is not functional).
PIN
SIGNAL
FUNCTION
1
PPS_OUT
1PPS output
2
SERIAL_OUT_TX
RS-232 Transmit data
3
SERIAL_OUT_RX
RS-232 Receive data
4
NC
No connection
5
GND
Ground
6
NC
No connection
7
NC
No connection
8
NC
No connection
9
NC
No connection
DB9 Pinout
Terminal Block Output Pins,
From terminal end of NetClock/NENA Breakout Cable
DB9 Output Pins
From terminal end of
NetClock/NENA Breakout Cable

SecureSync 2400 NetClock Option Guide, Rev 2
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Pin
Signal
Direction
Characteristics
1
RS-485 TX+
Out
0V to 3VDC differential, 120 Ωload
2
RS-485 TX-
Out
0V to 3VDC differential, 120 Ωload
3
GROUND
N/A
GROUND
4
Relay 0 NO
Out
Normally Open 30 VDC, 2A max. switching power
5
Relay 0 NC
Out
Normally Closed 30 VDC, 2A max. switching power
6
Relay 0 COMMON
Out
Common Contact 30 VDC, 2A max. switching power
7
Relay 1 NO
Out
Normally Open 30 VDC, 2A max. switching power
8
Relay 1 NC
Out
Normally Closed 30 VDC, 2A max. switching power
9
Relay 1 COMMON
Out
Common Contact 30 VDC, 2A max. switching power
10
GROUND
N/A
GROUND
Terminal Block Pinout
Relay 0
From Common (pin 6)
To NO (pin 4)
To NC (pin 5)
Power applied. No alarms
Short
Open
Power applied. Alarm active.
Open
Short
No power applied to SecureSync
Open
Short
Relay 1
From Common (pin 9)
To NO (pin 7)
To NC (pin 8)
Power applied. No alarms
Short
Open
Power applied. Alarm active.
Open
Short
No power applied to SecureSync
Open
Short
Alarm Relay Power Source
More information on standard unit behavior or any other feature or function of the SecureSync 2400 can be found in the
user manual at https://safran-navigation-timing.com/manuals/

SecureSync 2400 NetClock Option Guide, Rev 2
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