Microbee Systems MBS-GPS-SS2-5HZ Bedienungsanleitung PDF herunterladen (Seite 9)

PPS IO Connector, J6 Terminal Block

J6 is the IO for the 1PP signal. The pinouts are as follows:

J6.1

1PPS Output. This represents the 1PPS output in RS-232 level. This signal depends upon the

source and polarity selection as described previously.

J6.2

TTL level 1PPS output. It is identical to J6.1 except it is TTL level and can be inverted indepen-

dently of J6.1.

J6.3

This is the AUX PPS input. This input accepts RS-232 level signals. It is important to remem-

ber that if used with a TTL source you must invert the signal. This is because RS-232 level

signals are inverted relative to TTL (MARK = -5V and SPACE = +5V). A TTL Level 0VDC will

trigger a RS-232 level input to MARK.

J6.4

DCD1, this is the Data Carrier Detect input of the Differential Port UART. It is available as a

discreet TTL level input. These are active low inputs and are pulled to +5V.

J6.5

DSR1, this is the Data Set Ready input of the Differential Port UART. It is available as a dis-

creet TTL level input. These are active low inputs and are pulled to +5V.

J6.6

CTS1, this is the Clear To Send input of the Differential Port UART. It is available as a discreet

TTL level input. These are active low inputs and are pulled to +5V.

J6.7

+5VDC, un-fused. This is available to power external devices.

Caution, this is an unprotected 5VDC output.

J6.8

GND, This is the J6 signal ground.

preliminary

REV B

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Microbee Systems MBS-GPS-SS2-5HZ Bedienungsanleitung Seite 9