Zhone 900 Скачать руководство пользователя страница 7 | Manualshive

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Zhone 900 Скачать руководство пользователя страница 7

Zhone Technologies, Inc. @Zhone Way, 7001 Oakport St., Oakland, CA 94621 (510) 777-7000 Fax: (510) 777-7001

Figure 5: Mate and Lock Connector

This cable will take some force to overcome this connection. Room to maneuver inside of
the IMACS housing will allow for maneuverability. Care should be taken to not break the
lip on the backplane side of the connector, as a ten-tear old connection might become
brittle. Upward force on the cable, or a small wedge (such as a screwdriver tip) inserted
between the two flat surfaces can result in a successful de-coupling of the connector.

Cable Cleaning
Both ends of the cable can be cleaned in turn by using a spray degreaser into the receptor
holes of the cable. The degreaser should mention that it is suitable for use on PC boards.
Once both ends of the cable have been cleaned, then a non-conductive oxidation
preventative can be applied directly into the receptor holes of the cable connector.

Post Cleaning
Similar to the cable ends, the posts on the IMACS backplanes should also be cleaned
with the degreaser used above. A non-conductive oxidation preventative should be
rubbed onto the metal posts to ensure complete coverage and coating.

Cable Replacement
Once the cable and posts have been thoroughly cleaned and coated, the cable can then be
replaced.

When re-installing the cable, ensure that the brown wire is oriented towards the top of the
connector, matching the original.

Be careful to thread the cable through the slot to the right of user card U8, so that the
cable can then be re-fastened to the side wall of the IMACS-900 shelf. The action of
installing the cable onto the posts also provides some abrasive cleansing, so placing the
cable onto the posts and then removing it a few times helps to ensure a more thorough
contact area.

Take care to line up the cable with the posts to ensure all pins are mating with the cable
connector. The cable ends have a lip on them that will mate and lock with the connector
on the board side. Use some force when installing the cable connector to make sure that it
locks into place on the board. If the cable does not lock, make sure it is oriented properly.

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Содержание 900

Страница 1: ...required on an IMACS 600 or IMACS 800 shelf The IMACS 900 uses a 18 pin wiring harness to connect the power PCB to the shelf PCB The cable is shown in Figure 1 Figure 1 Power Cable IMACS 900 This procedure is provided to augment the Field Advisory bulletin 20071206 2 FAB IMACS Power Supply OOS Alarm This Tech Tip provides greater detail on the item under the section for Valid Alarms of that bullet...

Страница 2: ...to clean the power supply cable is for the IMACS 900 shelf It is suggested that this procedure be performed on any IMACS shelf over ten years old at the same time as the Interface card battery replacement To find out more about the Interface card battery replacement call your Zhone representative and ask about GSS service product codes 3021AR and 3021FG This power cable maintenance procedure can b...

Страница 3: ...f the cable connector Cable Removal In order to remove the cable it will be necessary to remove power from the shelf Prior to starting it should be recorded what cards occupy which slots It is highly recommended to perform a database backup prior to beginning the procedure save to flash save off shelf In order to have room to maneuver it is recommended that the cards around the cable connector be ...

Страница 4: ...p to the elbow 5 Remove power supply cover from the front of the shelf 6 Record circuit pack locations refer to Table 1 7 Remove circuit packs around the work area to allow for maneuvering 8 Remove the power cable 9 Clean the power cable 10 Clean the posts 11 Replace the IF card battery on shelves nine years old or older 12 Replace the power cable 13 Replace the circuit packs 14 Reconnect power to...

Страница 5: ...s The removal of the power block will reveal the locations of the tie wraps which must be cut in order to allow for the removal of the power cable Refer to figure 4 below to identify the locations to cut the tie wrap holders Use extreme caution when cutting these tie wraps to ensure that the power cable is not accidentally damaged ...

Страница 6: ...nce the tie wraps have been cut and removed the power cable can then be removed from the shelf by threading the cable through the slot to the right of location U8 The cable is held in place by locking edges on the connector and the mating connector housing This mechanism is used to securely hold the cable to the motherboard see Figure 5 below ...

Страница 7: ...he posts on the IMACS backplanes should also be cleaned with the degreaser used above A non conductive oxidation preventative should be rubbed onto the metal posts to ensure complete coverage and coating Cable Replacement Once the cable and posts have been thoroughly cleaned and coated the cable can then be replaced When re installing the cable ensure that the brown wire is oriented towards the to...

Страница 8: ...placed back into its original location as illustrated in Figures 2 and 3 With the power properly routed the individual cards should be replaced as documented in Table 1 Care should be taken to properly secure each card into its respective slot in accordance with the recorded data Validation With all the cards now firmly in place the unit is ready for power to be applied Reconnect the power source ...

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