Communication Port. Symmetricom TimeSource 500

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Communication Port. Symmetricom TimeSource 500 | Manualzz

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

Communication Port 1

To provide an RS-232 link for TL1 command access to the

TimeSource 3500, connect to port 1 at the female 25-pin D connector labeled COM1. See Figure 26 for the location of the connector. See Table E for the connector pinouts.

Note:

The COM1 connector transmits data on pin 2, and receives data on pin 3. Be sure the other equipment receives data from the transmitting pin, and transmits data to the receiving pin.

3

Table E. COM1 Pinouts

5

7

20

3

4

Pin

2

Signal

Transmit data

Receive data

Request to send

Abbreviation

TXD

RXD

RTS

Direction

From TimeSource 3500

To TimeSource 3500

From TimeSource 3500

Clear to send

Signal ground

CTS

GND

To TimeSource 3500

Data terminal ready DTR From TimeSource 3500

Note: Pins not listed are reserved for future use.

126

TimeSource 3500

Installation

097-72050-01 Issue 7: August 2003

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

Communication Port 2

To provide an RS-232 link for TL1 command access to the

TimeSource 3500, connect to port 2 at the female RJ-45 connector labeled COM2. See Figure 26 for the location of the connector, and

Table F for the connector pinouts.

Note:

The COM2 connector transmits data on pin 2, and receives data on pin 3. Be sure the other equipment receives data from the transmitting pin, and transmits data to the receiving pin.

1

Table F. COM2 Connector Pinouts

6

7

8

Pin

2

3

5

Signal

Transmit data

Receive data

Signal ground

Abbreviation

TXD

RXD

GND

Direction

From TimeSource 3500

To TimeSource 3500

Data terminal ready

Clear to send

DTR

CTS

From TimeSource 3500

To TimeSource 3500

Request to send RTS From TimeSource 3500

Note: Pins not listed are reserved for future use.

3

4

TimeSource 3500

Installation

097-72050-01 Issue 7: August 2003

127

5

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