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STM-S3

STRATUM 3 SIMPLIFIED CONTROL TIMING MODULES

Connor-Winfield Corporation 

C O N N O R THE CONNOR-WINFIELD CORP.

W I N F I E L D 2111 COMPREHENSIVE DRIVE.

AURORA, IL 60505.

FAX (630) 851-5040.

PHONE (630) 851-4722

HTTP://WWW.CONWIN.COM

NETWORK ELEMENT TIMING GENERATOR

STRATUM 3 SIMPLIFIED CONTROL

TIMING MODULES (STM-S3)

STM-S3

PIN #

1

HLDOVR

2

REF _1

3

REF_2

4

FRERUN

5

Gnd

10

ALARM_OUT

11

CNTL_A

12

CNTL_B

13

PLL_TVL

14

Gnd

15

SYNC_OUT

17

Gnd

18

CLK_OUT

20

Gnd

21

EX_REF_2

22

Gnd

23

EX_REF_1

24

+5 Vdc

PIN DESCRIPTION

-Output. High when the control inputs select Holdover.

-Ouput. High when the control inputs select EX REF_1.

-Output. High when the control inputs select EX REF_2.

-Output. High when the control input selects Free Run.

-Ground.

-Ouput. =1,If (FRERUN + HOLDOVER + LOS + LOL + PLL_TVL) .

-Mode control input.

-Mode control input.

-Tuning Voltage Alarm. =1 If CAPTURE RANGE NEAR 10% OF EXTREME (~11ppm).

-Ground.

-Syncronized output.

-Ground.

-Stratum 3 TCXO output. (Non-synchronized).

-Ground.

-External Reference #2 Input. (8 KHz)

-Ground.

-Input. External Reference #1 Input. (8 KHz)

+5 Volt DC supply.

NOTES:

NOTES FOR TABLES 1-3

2.0

Holdover stability is the cumulative fractional frequency offset containing Initial Offset, Temperature, and Drift components as described by

Bellcore GR-1244-CORE 5.2.

3.0

Pull-in range is the minimum frequency deviation on the reference inputs to the timing module that can be overcome to pull itself into synchronization

with the reference.

4.0

After 100 seconds at stable room temperature.

5.0

Consult factory for other output frequencies.

6.0

Ref- GR1244-CORE 3.2.1 R3-1.

7.0

A ‘1’ level indicates unit is within the extreme 10% of its operating range tracking the reference (~11ppm). Consult factory for use as a reference

quilifier.

8.0

Add ‘-T2’ to model number.

9.0

Consult factory for power dissipation of -T2 (0 to +70 deg. C.) devices.

INT

Specifications subject to change without notice.

DATA SHEET #: _T_M__0_0_0______ PAGE____5__ OF __6_____ REV:__0_4_____ DATE:___1_/_3_/_2_0_0_0__ © Copyright 2000 Connor-Winfield all rights reserved.

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