Chapter 3
Communication Ports
RUGGEDCOM RS416
Installation Guide
24
BNC Ports
Serial RJ45 Port with IRIG-B Support
8
1
Figure 28: Serial RJ45 Port Pin Configuration
Pin
RS232 Mode
RS485 Mode
RS422 Mode
1
RX-
2
+IRIG-B
3
Common (Isolated) Ground
4
Common (Isolated) Ground
5
RXD
g
RX+
6
TXD
g
TX/RX+
TX+
7
CTS
8
RTS
TX/RX-
TX-
Shield
Chassis Ground
g
In RS232 mode, the RJ45 ports conform to EIA-561 DTE, which transmit on TXD and receive on RXD.
NOTE
Pins 7 and 8 are connected internally. In RS232 mode, these pins enter a high impedance state. A DTE
that asserts RTS will see CTS asserted. However, the device will not perform hardware flow control.
Section 3.4
BNC Ports
The following BNC ports are available on the PTP module:
T
T
L
IN
T
T
L
O
U
T
1
3
2
Figure 29: PTP Module
1.
TTL OUT Port
2.
Sync LED
3.
TTL IN Port
Port
Function
TTL OUT
IRIG-B PWM or 1 PPS signal
output, software selectable
TTL IN
TTL-level IRIG-
B PWM signal input
Inputs are controlled by RUGGEDCOM ROS and only one can be active at any time. For information about
activating an input, refer to the
RUGGEDCOM ROS User Guide
for the RS416.
The color of the
Sync
LED on the front panel of the PTP module indicates the status of the incoming timing signal:
•
Green
– Signal locked
•
Amber/Yellow
– Holdover (GPS lock has been achieved, but the receiver no longer sees the minimum number
of required satellites)
•
Red
– Error
•
Off
– No signal detected
