Power-Up. Symmetricom TimeSource 500

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Power-Up. 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

Power-Up

S S

To power the TimeSource 3500, follow the steps in Procedure H.

Before starting this procedure, be sure the antenna, shelf, and all connections appropriate for this installation have been installed, and that the host computer is set to communicate with the

TimeSource 3500.

S

Note: If using the TimeScan Craft software program for the power-up procedure, see the TimeScan Craft manual for the appropriate TimeScan commands to use in place of the TL1 commands in Procedure H.

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Procedure H. Power-Up

Step Procedure

Test Equipment:

• Grounding wrist strap

• Digital multimeter (Fluke 77 or equivalent)

• Laptop computer with communications software (e.g., Windows Hyperterminal,

ProComm Plus, CrossTalk)

1 On the computer connected to the TimeSource 3500, start a VT100 terminal mode session via communication software that supports the Y-modem protocol

(such as Hyperterminal, or a commercial package such as PROCOMM PLUS or CrossTalk).

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On the computer connected to the TimeSource 3500, set the communication software to communicate with the port that is connected to the TimeSource

3500.

On the computer connected to the TimeSource 3500, set the RS-232 communication parameters to 8 data bits, no parity bit, 1 stop bit, and 9600 baud.

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Procedure H. Power-Up (cont’d)

Step

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Procedure

On the computer connected to the TimeSource 3500, connect the computer communication port to the COM1, COM2, or Craft port on the

TimeSource 3500. A craft port-to-PC communication cable is provided in the hardware kit for this purpose.

Ensure that the TimeSource 3500 plug-in card is not installed in the shelf.

Ensure that all fuses that supply power to the TimeSource 3500 Shelf are removed from the fuse panel.

At the shelf end of the battery leads, use the multimeter to measure the voltage between the following:

Test Point Test Point Result

–48V A lead –48V B lead 0 V

–48V A lead TB1: RTN A 0 V

–48V A lead TB1:

–48V B lead TB2: RTN B 0 V

–48V B lead TB2:

0 V

0 V

Attach a grounding wrist strap to the wrist, and plug the other end into the ground jack at the upper-right corner of the front of the plug-in card.

Pull out the latching levers at each end of the front panel so that the levers are pointing directly out from the front panel.

Push the card into the shelf until the latching levers begin to move in.

Push the latching levers flat against the front panel to complete the card insertion.

Tighten the knurled screw above each latching lever to secure the card in the shelf.

Unplug and remove the grounding wrist strap.

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Procedure H. Power-Up (cont’d)

Step Procedure

14 Install the battery source fuse(s) in the rack fuse bay that supplies power to the

TimeSource 3500. The TimeSource 3500 enters its warm-up mode after approximately 60 s when power is applied. During the warm-up period, the following conditions exist:

• Status GPS lamp is green

• Status SYS lamp is off

• T1 outputs are squelched, sending AIS (factory setting), or sending an SSM message, as specified in the ED-EQPT command

• Composite clock outputs (if equipped) are squelched

• Additional eight T1 outputs (if equipped) are squelched, sending AIS

(factory setting), or sending an SSM message, as specified in the ED-EQPT command

• Two IRIG-B outputs (if equipped) are squelched

• 10 MHz and 1 pps outputs are on (unreliable while Status SYS lamp is off)

• TOD output is not enabled (factory setting)

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Notes:

1. The CRIT lamp and other alarm indication lamps may light. The host computer may display transient and standing alarm condition messages.

Ignore alarms while the Status SYS lamp is off during warm-up, unless alarms apply to inputs and outputs that were previously entered.

2. TL1 commands may be entered during warm-up. Inputs and outputs can be enabled, and system parameters can be set or changed.

Note: If using the TimeScan Craft software program for the power-up procedure, see the TimeScan Craft manual for the appropriate TimeScan commands to use in place of the TL1 commands in this Procedure.

Use the Activate User command to log onto the system.

ACT-USER::TELECOM:<ctag>::TS3000!!;

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Procedure H. Power-Up (cont’d)

Step

16

Procedure

Skip this step if the current unit is equipped with a roof antenna.

Use the Edit Equipment command to change the antenna locating mode to manual and to enter the latitude, longitude, and altitude. In manual mode, the survey process used to determine the antenna’s exact position starts with this information.

Caution: Enter data carefully. When entering degrees, an error of a single degree will cause the system location accuracy to be off by as much as 60 mi.

ED-EQPT::GPS:<ctag>:::ANTMODE=MANUAL,MANLAT=a-b-c-d, MANLONG=e-f-gh,MANELEVALT=i; a= north (a = N) or south (a = S) of the equator b= degrees of latitude (b = 0 to 60) c= minutes of the degree (c = 0 to 60) d= decimal fraction of the minute (d = 000 to 999) e= east (e = E) or west (e = W) of the Greenwich Meridian f= degrees of longitude (f = 0 to 180) g= minutes of the degree (g = 0 to 60) h= decimal fraction of the minute (h = 000 to 999) i= elevation, or altitude, of the antenna in meters

Example command to set the latitude, longitude, and altitude of the antenna:

ED-EQPT::GPS:<ctag>:::ANTMODE=MANUAL,MANLAT=N-37-19-016, MANLONG=W-

121-59-246,MANELEVALT=12;

Notes:

1. The TimeSource 3500 can find its position on the earth without latitude, longitude, and altitude entered, but the process may take several hours, and may not result in the position accuracy (within 1/8 mi) required for the system to perform to specification. It is recommended that the information be obtained and manually entered by the user.

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Procedure H. Power-Up (cont’d)

Step Procedure

16

(cont’d)

Notes: (cont’d)

2. Latitude, longitude, and altitude data can be obtained through the use of a

GPS hand-held receiver (user supplied). Location mapping software is also available for personal computers, which can be used to obtain latitude and longitude. When the entered figures are within 1/8 mi of the actual coordinates, the TimeSource 3500 typically delivers UTC traceable timing within 1 h of applying power. Warm-up times vary greatly depending on the window location and antenna placement.

3. Obtain latitude, longitude, and altitude outdoors when using a GPS handheld receiver, to ensure an accurate reading. Do not use the GPS handheld receiver inside the building near the window or wall where the antenna will be installed. GPS hand-held receivers do not provide an accurate location reading when used indoors.

17 If UTC time is desired, skip to Step18. Use the Edit Date command to set the local date and time.

ED-DAT:::<ctag>::yyyy-mm-dd,hh-mm-ss:MODE=LOCAL; yyyy= year (yyyy = 1998 to 2096) mm= month (mm = 01 to 12) dd= day (dd = 01 to 31) hh= hours (hh = 00 to 23) mm= minutes (mm = 00 to 59) ss= seconds (ss = 00 to 59)

Example command to set local time:

ED-DAT:::123::2000-06-15,14-25-00:MODE=LOCAL;

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Procedure H. Power-Up (cont’d)

Step

18

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Procedure

If UTC time is not desired, skip to Step19. Use the Edit Date command to set the system for UTC time.

ED-DAT:::<ctag>::yyyy-mm-dd:MODE=UTC; yyyy= year (yyyy = 1998 to 2096) mm= month (mm = 01 to 12) dd= day (dd = 01 to 31)

Example command to set UTC time:

ED-DAT:::123::2000-06-15:MODE=UTC;

Use the Retrieve Equipment command to identify whether and how the inputs have been provisioned.

RTRV-EQPT::ALL:<ctag>;

Notes:

1. Observe those results with an <aid> of SPAN-a. If MONITOR=ALW appears for an input, that input has previously been entered. If

ENSEMBLER=ALW appears for an input, that input has been set to be ensembled.

2. Note the results of the Retrieve Equipment command to set the remaining parameters in this procedure.

3. Factory default settings are found at the end of this Power Up procedure section.

If the results of Step 19 indicate the span inputs (if used) are set as desired, skip to Step 21. Use the Enter Equipment command to monitor each available span input, and to specify whether those inputs are to be ensembled.

ENT-EQPT::SPAN-a:<ctag>:::ENSEMBLER=b; a= span input (a = A or B) b= whether this input is ensembled (b = ALW ensembles the input; b = INH inhibits the input from being ensembled)

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Procedure H. Power-Up (cont’d)

Step Procedure

21 Use the Edit Equipment command to set the output signal framing format for the two standard T1 outputs, and set the mode for each T1 output during an alarm.

ED-EQPT::T1-a:<ctag>:::FRAMING=b,ALMOUT=c; a= T1 output (a = A or B) b= framing format (b = ESF or D4) c= T1 output during alarm (c = AIS, SQUELCH, or SSM) (for SSM, framing format must be ESF)

22 If not using a 990-72050-02 system, skip this step. Use the Edit Equipment command to set the output signal framing format for each additional T1 output, and set the mode for each T1 output during an alarm.

ED-EQPT::OPT-a:<ctag>:::FRAMING=b,ALMOUT=c; a= T1 output module port (a = 1 to 8) b= framing format (b = ESF or D4) c= T1 output during alarm (c = AIS, SQUELCH, or SSM) (for SSM, framing format must be ESF)

23 If not using performance monitoring, skip to Step 24. Use the Initialize Register command to reset the performance monitoring data to zero for all input spans.

INIT-REG-EQPT::ALL:<ctag>::ALL;

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Procedure H. Power-Up (cont’d)

Step

24

Procedure

If not using Ethernet, go to Step 28. Use the Edit Equipment command while connected to COM1, COM2, or the CRAFT port to set the IP address, subnetwork mask, and gateway address for the current TimeSource 3500 unit, as required for proper operation in the managed element network. (These parameters affect all Ethernet ports. The Ethernet port should be closed and all users logged off before issuing this command.)

ED-EQPT::TS3500:<ctag>:::IPNE=a,IPSUBNET=a,IPGATE=a;

IPNE=a= This unit’s IP address in the form a.a.a.a (each a is an independent value of 0 to 255)

IPSUBNET=a= Subnet mask in the form a.a.a.a (each a is an independent value of 0 to 255)

IPGATE=a= Gateway IP address in the form a.a.a.a (each a is an independent value of 0 to 255)

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Procedure H. Power-Up (cont’d)

Step Procedure

25 Ports 5001, 5002, 5003 and 5004 on the TimeSource 3500 are used as though they were serial TL1 communication ports. The following values are set at the factory and appear at reset:

MONMSG=INH (monitors only the current port for messages)

KEEPALIVE=0 (does not send a COMPLD message to keep connection open)

ENDOFTEXT=0 (does not include an end-of-text code with a TL1 message)

ECHO=ALW (echoes characters back to the sending terminal)

COMPRI=ALW1 (normal communication, including autonomous messages)

AUTOLOGOFF=20 (does not log off the user during inactivity)

SWCONTROL=INH (uses no flow control)

If these values require change, use the Edit Communications command to set communications parameters for TL1 communications.

ED-COM::COM-a:<ctag>:::[MONMSG=b[,]][KEEPALIVE=c[,]]

[ENDOFTEXT=d[,]][ECHO=b[,]][COMPRI=e[,]][AUTOLOGOFF=c[,]][SWCONTROL

=b];

COM-a = User IP port (a = 5001, 5002, 5003 or 5004)

MONMSG=b= Monitors messages on all ports (b = ALW), or current port

KEEPALIVE=c=

(b = INH)

Inactive minutes until the unit sends a COMPLD message to keep the connection from being closed (c = 0 to 255)

ENDOFTEXT=d= Hex code added to responses before semicolon (d = 0

ECHO=b=

COMPRI=e=

(disabled) to 9F)

Echoes characters received so they appear on the user’s screen as typed (b = ALW), or inhibits echo (b = INH)

Sets the communication port capabilities as follows:

ALW0= normal communication, no autonomous messages

ALW1= normal communication, autonomous messages

ALW2= autonomous messages received, logged on or not

INH = closes connection and keeps port from use (command must go to another port) (if the port is in use, this command also logs off the user)

AUTOLOGOFF=c= Inactive minutes until the unit logs off the user, keeping the connection open (c = 0 to 255)

SWCONTROL=b= uses software (XON/XOFF) flow control (b = ALW), or no flow control (b = INH)

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Procedure H. Power-Up (cont’d)

Step

26

Procedure

If not using an Element Manager, skip to Step 28. If not using a separate port to send autonomous messages to an Element Manager, skip to Step 27. Use the Edit Equipment command to set the IP address and port address of the

Element Manager. Port 5550 connects to this address when the TimeSource

3500 develops a TL1 autonomous message, sends any messages, and closes the connection. An alternate Element Manager may be set up in case port

5550 cannot make a connection to the primary Element Manager.

ED-EQPT::TS3500:<ctag>:::IPEM1=a,IPEM1PORT=b[,IPEM2=a]

[,IPEM2PORT=b][,IPINACT=c];

IPEM1=a= Primary Element Manager’s IP address in the form a.a.a.a

(each a is an independent value of 0 to 255)

IPEM1PORT=b=Primary Element Manager’s Ethernet port address

(b = 0 to 65535)

IPEM2=a= Alternate Element Manager’s IP address in the form a.a.a.a (each a is an independent value of 0 to 255)

IPEM2PORT=b=Alternate Element Manager’s Ethernet port address

(b = 0 to 65535)

IPINACT=c= Disconnects from the Element Manager if an autonomous message is not developed during this number of 100-ms units of inactivity (0 to 10,000, where 0 deactivates the timer)

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Procedure H. Power-Up (cont’d)

Step Procedure

27 Use the Edit Communications command to set the communications parameters of port 5551. An Element Manager connects to port 5551 for TL1 command and response messages. The following values for port 5551 are set at the factory and appear at reset:

MONMSG=INH (monitors only the current port for messages)

KEEPALIVE=0 (does not send a COMPLD message to keep connection open)

ENDOFTEXT=0 (does not include an end-of-text code with a TL1 message)

ECHO=INH (does not echo characters received)

COMPRI=ALW1 (normal communication, including autonomous messages)

AUTOLOGOFF=20 (does not log off the user during inactivity)

SWCONTROL=INH (uses no flow control)

If these values require change, use the Edit Communications command to set communications parameters for TL1 communications.

ED-COM::COM-5551:<ctag>:::[MONMSG=b[,]][KEEPALIVE=c[,]]

[ENDOFTEXT=d[,]][ECHO=b[,]][COMPRI=e[,]][AUTOLOGOFF=c[,]]

[SWCONTROL=b];

MONMSG=b= Monitors messages on all ports (b = ALW), or current port

(b = INH)

KEEPALIVE=c=

ENDOFTEXT=d= Hex code added to responses before semicolon (d = 0

(disabled) to 9F)

ECHO=b=

Inactive minutes until the unit sends a COMPLD message to keep the connection from being closed (c = 0 to 255)

COMPRI=e=

Echoes characters received so they appear on the user’s screen as typed (b = ALW), or inhibits echo (b = INH)

Sets the communication port capabilities as follows:

ALW0 = normal communication, no autonomous messages

ALW1 = normal communication, autonomous messages

ALW2 = autonomous messages received, logged on or not

INH = closes connection and keeps port from use (command must go to another port) (if the port is in use, this command also logs off the user)

AUTOLOGOFF=c= Inactive minutes until the unit logs off the user, keeping the connection open (c = 0 to 255)

SWCONTROL=b= uses software (XON/XOFF) flow control (b = ALW), or no flow control (b = INH)

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Procedure H. Power-Up (cont’d)

Step

28

29

30

Procedure

If the results of Step 19 indicate the antenna cable delay and elevation mask are set as desired, skip to Step 29. Use the Edit Equipment command to set the length of cable between the antenna and the TimeSource 3500 Shelf. This number should have been recorded during installation. Use the same command to set the antenna elevation mask angle.

ED-EQPT::GPS:<ctag>:::ANTCBLDLY=a,ANTELEVMASK=b; a= antenna cable delay in meters (a = 0 to 330) b= antenna elevation mask angle in degrees (b = 0 to 45) (see note below)

Note: The antenna elevation mask is that portion of the sky from which the

TimeSource 3500 masks out satellite signals, measured as an angle of elevation from the horizon. Reflections or other anomalies may disturb signals received from an area of the sky that has obstructions, usually the area near the ground. Masking that part of the sky may allow the receiver to acquire GPS signals more quickly and accurately. Factory setting is 10.

If not using the TOD output, skip to Step 30. Use the Edit Equipment command to set the TOD output.

ED-EQPT::TS3500:<ctag>:::TOD=b; b= TOD format (b = Cisco or NTP4)

Use the Edit Equipment command to allow or inhibit alarm conditioning on the outputs. Inhibiting the alarm conditioning forces the TimeSource 3500 to continue to output valid timing signals while in major alarm. This may be useful when testing, troubleshooting, or in installations where a TimeSource 3500 that is in major alarm may produce better timing signals than other sources (for example, offices without additional holdover clocks in a distribution shelf).

ED-EQPT::TS3500:<ctag>:::ALMCOND=b; b= alarm conditioning of the outputs (b = ALW or INH)

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Procedure H. Power-Up (cont’d)

Step Procedure

31 Use the Copy Memory command to copy the database from volatile to nonvolatile memory within the TimeSource 3500.

CPY-MEM:[tid]:TS3500:<ctag>::WKG,,AUX:DATA;

Note: Although the database is automatically copied to nonvolatile memory once per hour, it is recommended that the Copy Memory command be executed each time the database is changed.

32 When the GPS signals have been acquired and the outputs are stable enough to output a signal, the TimeSource enters a settling period. During the settling period, the following conditions exist:

• Status GPS lamp is green

• Status SYS lamp is green

• Any Span lamp is green when its input is connected, entered, contains valid framing, and is usable for ensembling

• All outputs are functioning according to specifications or in a slightly degraded mode

• A TL1 autonomous “settling period” event message exists.

Notes:

1. In roof antenna installations, the nominal time to reach normal operation

(output a PRS signal) is 20 min. If normal operation has not been reached after 40 min, refer to the Troubleshooting chapter.

2. The settling period is the condition where this clock is beyond the warm-up state but not yet in steady state operation. Steady state operation is indicated by the clearing of the “settling period” event.

3. In window or wall antenna installations, the nominal time to reach normal operation (output a PRS signal) is variable, depending on the view of the sky and the satellite positions at the time of power-up, and may take up to several hours. If normal operation is not reached, refer to the Troubleshooting chapter.

4. The TimeSource 3500 develops and sends timing within the PRS specification during normal operation and during any event (other than settling period) or minor alarm, but not during a major or critical alarm.

End of Procedure

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