Optional I/O Connector; Coaxial Connectors; Grounding - Spectracom VersaSync Quick Reference Manual

2.2 Connectors and their Pinouts
Pin
2
3
4
5
6
7
8
2.2.4

Optional I/O Connector

The Optional I/O connector is used in conjunction with the Option Board that is available for
VersaSync. If the unit is not equipped with an Option Board, this connector is not used.
2.2.5

Coaxial Connectors

VersaSync offers five (5) coaxial connectors, three (3) of which can be configured at the fact
ory to accommodate requirements for e.g., IRIG AM signals or additional 10 MHz outputs. The
minimum configuration includes the GNSS antenna and a 10 MHz sinewave output.
All coaxial connectors are standard SMA connectors .
ETHERNET connector wiring:
1 through 8: A Ethernet Connect, 4 pairs, 1000bT
9 through 16: B Ethernet Connect, 4 pairs, 1000bT
POWER connector pinout
1; 2: V
3: V
4; 5: Ground return
2.2.6

Grounding

The unit can be grounded in two different ways:
By isolating the DC negative terminals from the chassis of the unit ("airborne mode")
By connecting the DC negative terminals to the chassis of the unit, and to the vehicle
metallic structure.
12
Signal
Ethernet_1 A–
Ethernet_1 B+
Ethernet_1 B–
Ethernet_1 C+
Ethernet_1 C–
Ethernet_1 D+
Ethernet_1 D–
, 10 to 30 V
Main DC
, 10.5 to 12 V (Standby Power)
Batt DC
CHAPTER
Pin Signal
10 Ethernet_2 A–
11 Ethernet_2 B+
12 Ethernet_2 B–
13 Ethernet_2 C+
14 Ethernet_2 C–
15 Ethernet_2 D+
16 Ethernet_2 D–
•
2 VersaSync Evaluation Kit Quick Reference Guide Rev. 5