Section 3: Operation
Page 3-28
NetClock/GTP Instruction Manual
Spectracom Model 8188 is an Ethernet Time Server that supports NTP and
SNTP time protocols. The Model 8188 accepts either Format 0 or Format 2 and
connects to the RS-485 data bus through a terminal block to DB25 adapter.
Connect the Model 8188 to the NetClock/GTP as shown in Figure 3-13.
FIGURE 3-13 MODEL 8188 RS-485 INTERFACE
The Model 8180 TimeTalk provides an audio time of day announcement to time
stamp voice recorders or for broadcast over radio transmitters. The TimeTalk
accepts only Data Formats 0 or 1. Connect the TimeTalk to the RS-485 time
data bus as shown in Figure 3-14. The synchronizing data stream is input on the
TimeTalk Remote Input connector (DB9 male) and passed through to the
Remote Output connector (DB9 female).
TimeTalk
1
2
3
8 3 9
9 3 8
Remote
Input
Remote
Output
+BDATA
-BDATA
GND
+BDATA
-BDATA
GND
FIGURE 3-14 TIMETALK RS-485 INTERFACE