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DEFINITY Made Easy Tools
Issue 2, November 2000
System 75 Small-Cabinet to R8si (Blowback)
Upgrade overview: small-cabinet System 75
When you upgrade a System 75 small cabinet, consider the following:
- Many configurations of small-cabinet System 75s are in the field.
- Each system can have a unique hardware and software configuration.
- How you upgrade a small-cabinet System 75 depends on its present configuration.
- To upgrade a control carrier, you replace the small-cabinet System 75 control carrier with a new R7si enhanced control carrier.
- To upgrade a small-cabinet System 75 control carrier and cabinet, you install a new multicarrier PPN.
Replacing the control carrier
When you replace the control carrier in a small-cabinet System 75:
- You may need to move and manually retranslate port circuit packs from the small-cabinet System 75.
- A new R7si or R8si enhanced control carrier with 13 port slots and new power supplies will replace either:
- An R1V3 J58890AB control carrier in a Model 1 with 12 port slots. This provides 1 extra port slot.
- An R1V3 J58890AA control carrier in a Model 2 with 8 port slots. This provide 5 extra port slots
- Out of these 13 port slots, nonport-related circuit packs may need to occupy certain slots.
- If the control carrier in the small-cabinet System 75 system contains a TN752 or TN755 power supply, this circuit pack will occupy port slots 12 and 13 of the new R7si enhanced control carrier.
- If you simultaneously add an EPN, you must install a TN776 or TN570 expansion interface circuit pack in slot 1 of the new R7si or R8si enhanced control carrier.
- If you have both of the above scenarios, the result is either a net loss of 2 port slots (from the AB carrier) or a net gain of only 2 port slots (from the AA carrier).
Replacing the cabinet and control carrier
When you replace the cabinet and control carrier for a small-cabinet System 75:
- You need to move and manually retranslate port circuit packs from the small-cabinet System 75 control carrier.
- A new R7si/R8si control carrier with 9 port slots and new power supplies will replace either:
- An R1V3 J58890AB control carrier in a Model 1 with 12 port slots. This provides 3 fewer port slots.
- An R1V3 J58890AA control carrier in a Model 2 with 8 port slots. This provides 1 extra port slot.
- Out of these 9 port slots, nonport-related circuit packs may need to occupy certain slots.
- If the control carrier in the small-cabinet System 75 system holds a TN752 or TN755 power supply, this circuit pack will occupy port slots 8 and 9 of the new R7si/R8si control carrier.
- If you simultaneously add an EPN, you must install a TN776 or TN570 expansion interface circuit pack in slot 1 of the new R7si/R8si control carrier.
- If you have both of the above scenarios, the result is either a net loss of 6 port slots (from the AB carrier) or a net loss of 2 port slots (from the AA carrier).
Power requirements
See the power and grounding requirements in DEFINITY Communications System Generic 1 and Generic 3 Installation and Test, 555-230-104.
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| Copyright� 2000 Avaya Inc |
| Send comments to MadeEasy Development Team |
| Always check at the Made Easy Web site for the most current information. |