Cisco AS5800 매뉴얼 - 페이지 18
{카테고리_이름} Cisco AS5800에 대한 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Cisco AS5800 22 페이지. Access server channelized t1/e1 trunk cards
Cisco AS5800에 대해서도 마찬가지입니다: 매뉴얼 (16 페이지)
Trunk cards weigh 8 lb (3.6 kg) each. Use two hands when removing or replacing a trunk card.
Step 1 Ensure your ESDpreventive wrist strap is attached between you and an
unpainted chassis surface.
Caution
To prevent ESD damage, handle trunk cards by ejector levers and carrier edges only, and use
an ESDpreventive wrist strap or other grounding device.
Step 2 Carefully align the trunk card carrier guides with the top and bottom grooves
in the dial shelf slot. Avoid touching the circuitry or any connector pins.
Step 3 Slide the trunk card into the slot until the ejector levers make contact with the
chassis frame. (See .)
Step 4 Seat the trunk card in the backplane by pushing the card firmly until the
ejector levers fold in toward the trunk card front panel, and the front panel is
flush with the chassis frame.
Caution
Always use the ejector levers to disengage or seat trunk cards, modem cards, or dial shelf
controller cards in the backplane. Failure to do so can cause erroneous system error
messages indicating a card failure. However, do not use the ejector levers to lift or
support the weight of the cards.
Step 5 Tighten the panel fasteners using a Number 2 Phillips screwdriver. This
secures the backplane connection and ensures proper EMI shielding.
Caution
Always tighten the panel fasteners on trunk cards. These fasteners prevent accidental removal
and provide proper grounding for the system.
Step 6 Repeat Step 2 through Step 5 for any other trunk cards you want to install.
Caution
To avoid erroneous failure messages, remove or insert only one trunk card at a time. Also, after
inserting or removing a trunk card, allow at least 15 seconds before removing or
inserting another trunk card so that the system can reinitialize and note the current
configuration of all interfaces.
Step 7 Install a blank filler card (DS58BLANK=) in all empty card slots to keep the
chassis dust free and to maintain proper airflow.
Caution
To prevent the overheating of internal components, always install blank filler cards in empty
slots to maintain the proper flow of cooling air across the cards.
This completes the trunk card replacement procedure. Proceed to the section
"Connecting Trunk Card Cables" to attach the interface cables.
Connecting Trunk Card Cables
The CT1 and CE1 trunk cards provide 12 RJ45 receptacles for T1 or E1 lines. To
connect T1or E1 lines, follow these steps:
Warning
The telecommunications lines must be disconnected 1) before unplugging the main
power connector and/or 2) while the housing is open.
Step 1 Attach the RJ45 end of the T1 or E1 cables directly to the RJ45 receptacles
on the trunk card. (See .)
Step 2 For T1 cabling, attach the network end of your CT1 cables to your external