Symmetricom X72 User Manual

097-10603-01 Rev. A – November 2004 X72 Desiger’s Reference and User’s Guide 71
Symmetricom Serial Interface Protocol (SSIP)
Figure C-3 X72 Dimensions
Table C-1. Connector J1 Signal Information
PIN#
SIGNAL
NAME
TYPE
1
SIGNAL FUNCTION
1 - 7 VDD (bundled) PWR + Power input
8 SERVICE Output Service required within 30 days based on unit health
9 DOUT Output UART data out ACMOS logic level
10 DIN Input UART data in to oscillator
11 FREQ CTRL Analog Frequency control – analog input between 0 and 5 Vdc
12 - 18 VSS (bundled) GND – Power & signal return
19 1 PPS IN Input 1 PPS input, positive edge triggered
20 1 PPS OUT Output 1 PPS output, may be enabled/disabled digitally

Symmetricom X72 Specifications

General

Brand	Symmetricom
Model	X72
Category	Test Equipment
Language	English