Spectracom Corporation
Model 9289
NetClock/NTP Network Time Provider Instruction Manual
2-15
STRIP WIRE
WRAP WIRE OVER
INSULATING JACKET
INSERT WRAPPED
END AND TIGHTEN
NOTE:
Most RS-485 connections found on Spectracom equipment are made using a
removable terminal strip. A jaw that compresses the wires when tightened secures the
wires. When using small diameter wire, 22-26 gauge, a strain relief can be fashioned
by wrapping the stripped wire over the insulating jacket. Wrapping the wires in this
manner prevents smaller gauge wires from breaking off when exposed to handling or
movement.
Figure 2-10: Wire Strain Relief
TimeView display clocks use a 6-position terminal block to connect to the RS-485 data bus.
Connect the TimeView to the NetClock RS-485 Output as shown in
Figure 2-11. The TimeView display clocks accept only Data Formats 0 or 1.
Figure 2-11: TimeView RS-485 Interface
The Model 8179T TimeTap is an RS-485 to RS-232 converter. The Model 8179T has a DB9
RS-232 interface that receives operational power from the RS-232 flow control pins RTS or
DTR. Connect the TimeTap to the RS-485 data bus as shown in Figure 2-12.
NETCLOCK
REMOTE OUTPUT
1
2
3
3-POSITION
TERMINAL BLOCK
+DATA
-DATA
GROUND
Twisted Pair
TO TIMEVIEW
RS-485 IN/OUT
+DATA
-DATA
GROUND
TO OTHER
RS-485
DEVICES
1
2
3
4
5
6
Summary of Contents for 9289
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