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(ADMIN ONLY)Bulletin Number:GSM_G_BSS_101

EMEA Swindon CNRC # +44 (0) 1793-565444 Motorola General Business Informtion

ASPAC CNRC# +86-10-8841-7733 ECCN#

WCN#GSMGBSS2106041200

Final Document Date Printed: 04/10/2002 Page: 1 of 2

Bulletin Number: GSM_G_BSS_101

To: All GSM Customers & Local Office Publication Date: 5th

July 2004

From: EMEA Customer Support Centre Expiration Date: 5th October 2004

Title: Use of Horizon II transceivers in HorizonmacroOutdoor 6-carrier BTS cabinets

Overview: The CTU2 is now approved for deployment in HorizonmacroOutdoor 6-carriercabinets. This bulletin documents the configurations that are supported

Affected Hardware:Horizonmacro Outdoor 6-carrier cabinets, Horizon II transceiver (CTU2)

Applicable Manuals/ Reference Manuals:68P02902W12 Service manual: Horizonmacro outdoor68P02902W03 Installation & Configuration: Horizonmacro outdoor

Summary

Configurations supported:

Up to 3x CTU2 (operating in EDGE 8PSK or single carrier mode), with the remaining transceiverslots populated with CTUs.

Configurations not supported:

CTU2 in double density mode

More than 3x CTU2 in one cabinet

Cabinet Modifications required:

All cabinet power supplies must be installed (Indoor PSUs and TOPSMs)

PCMCIA card must be installed in MCU-F

8/2/2019 gsm_g_bss_101

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(ADMIN ONLY)Bulletin Number:GSM_G_BSS_101

EMEA Swindon CNRC # +44 (0) 1793-565444 Motorola General Business Informtion

ASPAC CNRC# +86-10-8841-7733 ECCN#

WCN#GSMGBSS2106041200

Final Document Date Printed: 04/10/2002 Page: 2 of 2

Detail

Following detailed testing of the thermal and power characteristics of the Horizon II transceiver (theCTU2) when deployed in the previous-generation HorizonmacroOutdoor 6-carrier BTS cabinet,Motorola is now able to confirm details of supported configurations of these products.

The CTU2 draws more power than the CTU, and dissipates more power as heat. The difference isgreatest when the CTU2 is operating in dual-density mode. It is therefore not possible to install six

CTU2s in the Outdoor cabinet without degrading the ambient temperature specifications of theproduct, and not possible to deploy the CTU2 in the Outdoor-6 in double-density mode.

However, due to the robust design of the cabinet power and cooling systems, there is some marginfor increase. Testing has shown that a configuration of 3 CTUs and 3 CTU2s (operating in singlecarrier or EDGE 8PSK mode) can operate safely up to the 50C environmental limit of the product.

Accordingly, Motorola has obtained the necessary Type Approval and Safety certification for thisconfiguration.

To accommodate the code objects for both types of transceiver, a PCMCIA card is required to beinstalled in the MCU-F board. To support the extra power requirements of the CTU2s, it is necessaryto fully populate all cabinet power supply slots (indoor PSUs and TOPSMs). This means that powerredundancy is not supported on cabinets containing CTU2s.

It should be noted that any configuration outside these guidelines is not supported by Motorola, or bythe Type Approval and Safety certification of the product. Should any such configuration be deployed,the product warranty will be invalid, and the customer may experience over-temperature alarms andunplanned site shutdowns.

Motorola has now embarked on a similar testing and certification programme for the HorizonmacroOutdoor 12-carrier product. The results will be published as soon as they are available.

All Motorola product names are trademarks or registered trademarks of Motorola, Inc.

End of Document