
70
TimeSource 3000
Installation
097-72000-02 Issue 6: October 2003
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3
DCD Shelf without Isolation Module
If an isolation module is not required, use two 50 ohm coax cables to make the connections
to the DCD Shelf. If longer cables are required, these must not exceed 50 feet, and are to be
user-supplied.
Source Other than DCD Shelf
If an isolator kit is not required, connect an RG-59/U coaxial cable from a 5 MHz or 10
MHz remote oscillator to the connector labeled REM OSC A. Connect another RG-59/U
coaxial cable from a remote oscillator of the same frequency to the connector labeled REM
OSC B. Both remote oscillators must be the same frequency, and a minimum of Stratum 2
(rubidium oscillator) quality. See Figure 11 for the connector locations.
1 PPS Output
If using 1 PPS output, connect an RG-58 coaxial cable from the connector labeled TTL PPS
to the equipment that will use the 1 pulse-per-second TTL output signal. See Figure 11 for
the connector location.
10 MHz Output
If using 10 MHz output, connect an RG-58 coaxial cable from the connector labeled 10MHz
to the equipment that will use the 10 MHz output signal. See Figure 11 for the connector
location.
Ethernet
Connect a user-supplied Ethernet cable from the network to the 10base-T Ethernet connector
labeled E-NET. See Figure 11 for the connector location, and Table C for the connector
pinouts.
Table C. Ethernet 10base-T RJ-45 Connector Pinouts
Pin
Signal
Abbreviation
Direction
1
Transmit data +
TXD +
From TimeSource 3000
2
Transmit data –
TXD –
From TimeSource 3000
3
Receive data +
RXD +
To TimeSource 3000
4
—
—
—
5
—
—
—
6
Receive data –
RXD –
To TimeSource 3000
7
—
—
—
8
—
—
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Summary of Contents for TimeSource 3000
Page 1: ...TimeSource 3000 GPS Primary Reference Source 097 72000 02 Issue 6 October 2003 ...
Page 47: ...3 Chapter Installation This chapter provides the steps required for installation and power up ...
Page 107: ...Chapter 4 TL1 Reference This chapter provides information for using the TL1 language ...
Page 203: ...Chapter 6 Specifications This chapter provides equipment specifications ...