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Section 360-880-202

13

J6

J5

J4

+

+

SEC T1/EAST

T1CU

PRI T1/WEST

Figure 15.  3608-80 ST1U Rear Panel

5.1.2. Installing a New Unit

Use the following steps to install the ST1U.

Step

Action

1.

If not already installed, install the rear panel, screwing it to the appropriate mounting locations on the

shelf using the provided hardware.

WARNING: If there is already a rear panel installed on the shelf, check for interference when

mounting. The rear panel may need to be removed and replaced with the rear panel that has

been shipped with the new unit.

2.

Insert the unit into the shelf, making sure that the unit is aligned with the card guides inside the shelf.

3.

Slide the unit fully into the shelf. Use the insertion lever to fully seat the unit.

4.

Once the unit is fully inserted, tighten the securing screw on the front panel of the unit.

5.

Wire the unit per the wiring information in the wiring section.
When power is applied, the unit will perform a self-test to ensure that it is compatible with the network

management software on the system.

6.

After the self-test is performed, check the software provisioning of the unit using either the front panel

craft interface on the front of the controller unit or the network management interface on the rear of the

controller (see the section on network management for more information on this interface).

Note:

If a Secondary T1 unit is inserted into a shelf while power to the shelf is on, the T1 controller

unit may reset.

5.1.3. Installing a Replacement Unit

If you are replacing a unit that is already in service, insure that the new unit is the same as the unit being re-

placed.

Step

Action

1.

Remove the wiring connectors from the front and rear of the unit (J4, J5 & J6).

2.

Unscrew the front panel securing screw to release the unit from the shelf.

3.

Using the card ejector, remove the unit from the shelf.

4.

Follow the procedure for installing a new unit.

5.2

Wiring the Unit

5.2.1. Drop and Re-Insert Application

Use the following steps to wire the unit (see Figure 16).

Step

Action

1.

Connect the T1 from the WEST 360-80 ICB or equivalent to J6 of the ST1U.

2.

Using the cable provided with the unit, connect J5 to J1 on the T1-S.

3.

Connect J4 of the ST1U to the input of the next 360-80 ICB or to the EAST 360-80 ICB or equivalent.

Содержание 3608-80 Secondary T1

Страница 1: ...subject to change without notice Page 1 of 18 3608 80 Secondary T1 Unit CONTENTS PAGE Part 1 GENERAL 2 Part 2 INSPECTION 3 Part 3 APPLICATION GUIDELINES 4 Part 4 CIRCUIT DESCRIPTION 7 Part 5 INSTALLA...

Страница 2: ...ependent T1 loop timing dual T1 mode only Transport Protection switching protection mode only Drop and re insert operation with bypass normal D RI mode only Front panel status LEDs Front panel T1 moni...

Страница 3: ...tion Red AR Alarm Status LED Yellow AY Alarm Status LED Loss of frame LOF Alarm Status Loss of signal LOS Alarm Status Power status LED T1 framing selected Line code Trunk processing TP status LED Lin...

Страница 4: ...and the T1 of the ST1U to be connected to two different 360 80 ICBs These two T1s run independently of each other and allow the 360 80 system to provide up to 1 5 Mbps to each T1 for a total of over...

Страница 5: ...switch to the protection mode See Figure 4 for a typical configuration Note Both T1 S units should be set for the same error threshold 360 80 Primary T1 360 80 T1 Protection T1 S ST1U T1 S ST1U Figure...

Страница 6: ...Re Insert 8 channels west and 8 channels east Drop Re Insert 16 channels Terminate 360 80 ICB 360 80 ICB 360 80 ICB A B C West East Site 1 Site 2 8 channels west Figure 6 Drop and Re Insert Applicati...

Страница 7: ...lay path for the T1 facility as part of the assembly as shown in Figure 8 When de energized these relays bypass the ICB and connect the WEST primary T1 to the EAST secondary T1 When the ST1U and T1 S...

Страница 8: ...des monitor jacks to monitor this T1 The T1 then goes to the EAST TIMING and FRAMING block where the circuit detects either SF or ESF framing A loss of framing signal will cause the AR LED to light an...

Страница 9: ...stalled card will be allocated to phantom channels These timeslots must be de allocated before they can be allocated to a channel When a different card is inserted into a chassis slot that had timeslo...

Страница 10: ...serted between the channel and the same timeslot of the other T1 Primary Secondary W D I E Time Slot Mode has No Effect on Data in Both Directions Figure 10 Drop at T1 Primary and Secondary for the Sa...

Страница 11: ...ass Through because when both primary and secondary timeslot modes are set to broadcast the data passes through the 360 80 Primary Secondary W D I E Controlled by Secondary TS Mode Controlled by Prima...

Страница 12: ...no other action is taken Red or yellow alarms detected on the East facility will illuminate the respective AR and or AY LEDs When the red alarm condition no longer exists for approximately 15 seconds...

Страница 13: ...tem 6 After the self test is performed check the software provisioning of the unit using either the front panel craft interface on the front of the controller unit or the network management interface...

Страница 14: ...ible indications of present alarm conditions it does NOT clear the alarm If a new alarm occurs the audible indication will re enable Table 1 LED Definitions Label Color Indicates that POWER Green The...

Страница 15: ...ction Line Near End Line Far End Payload Far End None Remote Control Method None Occupy One Channel Facility Data Link ESF Format Only Facility Data Link Bypass Drop and Re insert Only Auto Bypass For...

Страница 16: ...arton in which the replacement was shipped using the pre addressed shipping label provided Call your customer service representative at the telephone number above for more details 9 4 Standard Repair...

Страница 17: ...to monitor the secondary T1 signal both transmit and receive without interference Alarm interface and contacts The system provides visual and audible alarm contact clo sure when the channel bank is i...

Страница 18: ...3 Physical Specifications Feature U S Metric Height 0 75 inch 1 9 centimeters Width 5 64 inches 14 32 centimeters Depth 9 25 inches 23 49 centimeters Weight 0 64 pound 290 grams Temperature 40 to 149...

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