17
Installation and Maintenance Manual
Model 300MB-SD CommCenter Series D1
Safety Messages to Maintenance Personnel
This device is to be serviced by a trained electrician who is thoroughly familiar with the National Electric
Code and will follow the NEC guidelines as well as local codes.
This service information is for qualified personnel only. To avoid electric shock, do not perform any servicing
other than changing fuses, unless qualified to do so. Refer all servicing to qualified service personnel.
Listed below are some important safety instructions and precautions you should follow:
•
Read and understand all instructions before operating this system.
•
Do not perform any maintenance on this system when power is on. Because the 300MB does not have a
power switch, ensure that the power is disconnected before proceeding.
•
Read and understand all instructions before operating this system.
•
Always insure that the power to the 300MB is disconnected before removing the metal cover.
•
Do not connect this unit to the system when power is on.
•
All effective warning speakers produce loud sounds which may cause, in certain situations, permanent
hearing loss. You should take appropriate precautions such as wearing hearing protection.
•
After installation, test the sound system to ensure proper operation.
•
Establish a procedure to routinely check the sound system for proper activation and operation.
Failure to follow all safety precautions and instructions may result in property damage, serious injury, or death.
Installing Storage Chips
SHOCK HAZARD
—
Do not perform any installation or maintenance on this
system when power is on. Because the 300MB-SD does not have a power switch,
ensure that the power is disconnected before proceeding. Failure to heed this
warning may cause serious injury or death.
STATIC SENSITIVE DEVICE
—
The circuitry of the storage chips and of the
CommCenter can be destroyed or damaged by static discharge. Observe anti-
static procedures when installing or maintaining a CommCenter.
NOTE:
Perform the procedures in this section ONLY if you need to change the priority of the storage chips
or are adding a different message to the unit 300MB.
The CommCenter accepts messages stored on ICs and pluggable circuit boards. Both are referred to as
message chips in this manual. The messages stored on pluggable circuit boards will operate on all Series
B, Series C, and Series D Models. The Series D CommCenters use a different storage IC than the Series A,
Series B, and Series C. These ICs cannot be interchanged between Series A, Series, B, and Series C models.
Make sure to specify which series CommCenter you have before ordering any additional messages.
The 300MB can accommodate up to six storage chips. The CommCenter is be shipped from the factory with
