Symmetricom TimeSource 3100, User Manual

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TimeSource 3100
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Installation
097-72020-01 Issue 9: November 2003
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Power-Up
To power the TimeSource 3100, follow the steps in Procedure E. Before starting this
procedure, be sure the antenna, shelf, and all connections appropriate for this installation
have been installed, and that the host computer is set to communicate with the TimeSource
3100.
Procedure E. Power-Up
Step Procedure
Test Equipment:
• Grounding wrist strap
• Digital multimeter (Fluke 77 or equivalent)
• Laptop computer with communications software (e.g., Windows Hyperterminal, ProComm Plus,
CrossTalk)
1 On the computer connected to the TimeSource 3100, start a VT100 terminal mode session
via communication software that supports the Y-modem protocol (such as Hyperterminal, or
a commercial package such as PROCOMM PLUS or CrossTalk).
2 On the computer connected to the TimeSource 3100, set the communication software to
communicate with the port that is connected to the TimeSource 3100.
3 On the computer connected to the TimeSource 3100, set the RS-232 communication
parameters to 8 data bits, no parity bit, 1 stop bit, and 9600 baud.
4 On the computer connected to the TimeSource 3100, connect the computer communication
port to the COM1, COM2, or Craft port on the TimeSource 3100. A craft port-to-PC
communication cable is provided in the hardware kit for this purpose.
5 Ensure that the TimeSource 3100 plug-in card is not installed in the shelf.
6 Ensure that all fuses that supply power to the TimeSource 3100 Shelf are removed from the
fuse panel.
7 At the shelf end of the battery leads, use the multimeter to measure the voltage between
the following:
Test Point Test PointResult
–48V A lead–48V B lead0 V
–48V A leadTB1: RTN A0 V
–48V A lead TB1: GND0 V
–48V B leadTB2: RTN B0 V
–48V B leadTB2: GND0 V
8 Attach a grounding wrist strap to the wrist, and plug the other end into the ground jack at
the upper-right corner of the front of the plug-in card.
9 Pull out the latching levers at each end of the front panel of the TimeSource 3100 card so
that the levers are pointing directly out from the front panel.
10 Push the card into the shelf until the latching levers begin to move in.