7705 SAR-A Ports
126
7705 SAR-A Chassis Installation Guide
ToD Out Port
The ToD port uses an RJ-45 connector to send Time of Day and phase synchronization from
the 7705 SAR-A. Only output signals are supported. The port includes an RS-422 1 pulse per
second signal and an RS-422 serial time of day signal.
Shielded cable must be used to maintain EMC compliance.
shows the ToD Out port connector pin numbers.
Figure 31: ToD Out Port Pin Numbers
ToD Out Port Pinouts
specifies the ToD port pinout assignments.
3
TXD
Output
Transmit data
4
GRD
Serial ground
Serial ground
5
GRD
Serial ground
Serial ground
6
RXD
Input
Receive data
7
NC
—
Not connected
8
NC
—
Not connected (Do not connect)
Table 30: Console Port Pinouts—RJ-45 Female (Continued)
Pin
Signal
Direction
Description
Pin 8
Pin 1
21189
Table 31: ToD Port Pinouts—RJ-45 Female
Pin
Signal
Direction
Description
1
NC
—
Not connected
Содержание 7705 SAR-A
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