Ericsson LBI-39076B system manual ELI Software Upgrades, Gti Dsp

LBI-39076B MAINTENANCE

5.(Master GTI only) Disconnect the two Site Controller data link plugs from the back of the Master GTI.

6.Disconnect the PCM Data Bus from the back panel of the GTI. If there are two cables (or one cable and a termination) quickly reconnect the two cables (or the cable and the termination) back together without the GTI and let hang).

NOTE

It is necessary to temporarily separate the two PCM Data Bus cables when disconnecting them

from a GTI. While separated, all GTIs connected to higher numbered radio channels will not be connected to the Master GTI and may cause interconnect abnormalities such as dropped calls and/or alarms.

Use the preceding procedure in reverse to reconnect the GTI to the MASTR III EDACS Repeater.

ELI SOFTWARE UPGRADES

CAUTION

Using non-compatible versions of ELI software may lock-up (disable) each radio channel that is assigned to a local telephone interconnect call.

When upgrading to a new ELI software release number or adding new GTIs to an existing ELI system, you must make sure that all software versions and all GTI Main Board revision numbers used in that ELI system (each GTI and IAM) are compatible for that ELI software release number. Using non-compatible versions of software or hardware may lock-up (disable) each radio channel that is assigned to a local telephone interconnect call. Table 7 lists which software versions are required for each ELI software release number. Table 8 lists which software versions are required for each Main Board revision number.

Three plans for upgrading an existing ELI system from release 1.0 to release 1.1 software are given here. Each of the plans require that the ELI system be completely taken out of service while changes are made to the Master GTI unit. The differences are in how many (if any) GTI units you put in use before you have finished making changes to all of the GTI units.

Table 7 - Software Compatibility by Release Number

ELI	SOFT-	SOFTWARE VERSION
EQUIP-	WARE	REQUIRED FOR
MENT	PACKAGE	ELI RELEASE NUMBER
		Release 1.0	Release 1.1
All GTIs	GTI DSP	V1.00 or	V2.03
		V2.01
	GTI 552	V1.3 or	V2.3
		V2.1
	GTI Main	V1.03 or	V2.14
		V2.01
Master GTI	GTI Master	V1.02	V1.04
Only
IAM	GTI IAM	V1.2	V1.30
GTI	GTI	V1.3	V2.10
Configurator	Configurator

Plan A is to take the ELI system completely out of service while changes are made to the Master GTI unit and all regular GTI units. This plan is easiest for those making the changes to the GTI units, but hardest for those wanting to use the ELI system while the changes are being made.

Plan B is to briefly take the ELI system completely out of service while the first half of the regular GTI units are disconnected, then run the ELI system at half capacity while changes are made to the first half of the regular GTI units, then take the ELI system completely out of service while changes are made to the Master GTI unit, and then run the ELI system at half capacity while changes are made to the second half of the regular GTI units. This plan is harder for those making the changes to the GTI units, but is easier for those wanting to use a heavily-loaded ELI system while the changes are being made.

Plan C is to take the ELI system completely out of service while changes are made to the Master GTI unit, and then run the ELI system with only the Master GTI unit while changes are made to the first regular GTI unit. As the changes for each regular GTI unit or group of regular GTI units are completed, they can be reconnected and brought back into service. This plan is harder for those making the changes to the GTI units, but is easier for those wanting to use a lightly-loaded ELI system while the changes are being made.

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