Carrier Access 1750 user manual Broadmore Chassis Differences, Hardware Differences

Chassis Differences

Broadmore Chassis Differences

Broadmore Chassis Differences

This user manual covers the 7665-17B and 7665C chassis. The 7665C chassis is the newest chassis in the Broadmore series and has the most functionality. There is also a 17A chassis.

Hardware Differences

Major differences between chassis include mid-plane wiring, alarm/power modules, and fan trays as shown in the following table.

Chassis	Major Assemblies	Part Nos.	Comments
7665-17A	Alarm & Power Module	7660-021	No I/O module
	Fan Tray	7660-022	2-wire connection
7665-17B	Alarm & Power Module	7660-023	Requires I/O module
	Alarm & Power Module I/O	7660-025
	Fan Tray	7660-024	4-wire connection
7665-17C	Alarm & Power Module	7660-023	Requires I/O module
	Alarm & Power Module I/O	7660-025
	Fan Tray	7660-024	4-wire connection

The 17A and 17C chassis used in the Broadmore 1700 provide the same functionality and support the same NIM, SAM, and CPU modules. The 17C chassis also uses the improved Alarm & Power Module and Fan Tray assemblies as the 17B chassis.

The 17B chassis used in the Broadmore 1750 provides 1:4 SAM redundancy and has been NEBS tested with the OC-12 NIM (7660-114 or 7660-113) and the Un-Structured DS3 SAMs (7660-034 or 7660-672).

E-2 Broadmore 1750 - Release 4.6