STL-S3E Datasheet, PDF (4/24 Pages) Connor-Winfield Corporation – Stratum 3E Timing Module

Table 5
Pin Description
Pin #
Connection
Description
1
Hold Over
Indicator = 1 when module is in Hold Over
2
Reference 3
Indicator = 1 when module is locking to or is locked to external reference 3
3
Reference 1
4
Reference 4
5
Reference 2
6
Reference 5
7
Free Run
Indicator = 1 when module is locking to or is locked to external reference 1
Indicator = 1 when module is locking to or is locked to external reference 4
Indicator = 1 when module is locking to or is locked to external reference 2
Indicator = 1 when module is locking to or is locked to external reference 5
Indicator = 1 when module is in Free Run
8
Reference 6
Indicator = 1 when module is locking to or is locked to external reference 6
9
GND
10
Reset
11
Alarm
12
Output 3
13
CNTRL 1
14
CNTRL 3
15
CNTRL 2
16
SPI Enable
17
Lock
18
GND
19
SPI_OUT
Ground
Reset Pin (↓)*
Indicator = 1 when module is in an alarm condition
8 kHz output derived from system clock
Mode control input for manual operation. (↓)
Mode control input for manual operation. (↓)
Mode control input for manual operation. (↓)
Enable for SPI communication port. (↑)
Indicator = 0 when module is locked to selected reference.
Ground
Serial data output for SPI communication
20
Output 1
21
SPI_SCLK
22
GND
23
SPI_IN
24
Output 2
25
Slave Input
System clock output
Input clock for SPI communication. (↓)
Ground
Serial data input for SPI communication
8 kHz output derived from system clock
Input for synchronizing a module in slave configuration.
26
GND
Ground
27
External Reference 4
28
External Reference 2
29
External Reference 6
30
GND
External reference input #4
External reference input #2
External reference input #6
Ground
31
External Reference 3
External reference input #3
32
External Reference 1
External reference input #1
33
External Reference 5
External reference input #5
34
V_CC
(↑) = Internal pull-up
+3.3V_cc power supply required
(↓) = Internal pull-down
Internal pull-up/pull-down resistors range from 50 kΩ to 100 kΩ
(↓)* = 10 kΩ pull-down resistor
Preliminary Data Sheet #: TM048 Page 4 of 24 Rev: P00 Date: 05/13/04
© Copyright 2004 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice