EX-4 Tx1000 Keypad Expander Installation Manual Revision 1.0 March 1998 Page 3
1. PRE-INSTALLATION CHECKS AND SAFETY PROCEDURES
UNPACKING
Check Packaging - Upon taking delivery of the unit, inspect the packaging for signs of damage. If damage
has occurred, advise the carriers and/or the suppliers immediately.
Check Contents - Upon taking delivery of the unit, unpack the unit carefully and check that all the items are
present and correct. If any items are missing or damaged, contact your equipment dealer.
Retain Packaging - The shipping carton is the safest container in which to transport the unit. Retain
undamaged packaging for possible future use.
IMPORTANT SAFETY PRECAUTIONS
Read Instructions - All relevant safety, installation and operating instructions should be read before
attempting to install, connect or operate the unit.
Retain Instructions - All safety, installation and operating instructions should be retained for future
reference.
Heed Warnings - All warnings on the unit and in any relevant safety, installation or operating instructions
should be adhered to.
Cleaning - Unplug the unit from the power outlet before cleaning. Do not use liquid cleaners or aerosol
cleaners. Use a damp cloth for cleaning.
Attachments - Do not use attachments not recommended by the product manufacturer as they may cause
hazards.
Water and Moisture - Do not expose the internal electronics of this unit to water or dampness; for example,
in an unprotected outdoor installation, or in any area classified as a wet location.
Accessories - Do not attach this unit to an unstable stand, bracket or mount. The unit may fall, causing
serious injury to a person and serious damage to the unit.
Power Sources - This unit should be operated only from the type of power source indicated on the
manufacturer’s label. If you are not sure of the type of power supply you intend to use, consult your
equipment dealer or local power company. For units intended to operate from battery power or other sources,
refer to operating instructions.
Power Cord Protection - Power supply cords should be routed so that they are not likely to be trapped,
pinched or otherwise damaged by items in close proximity to them, whether inside the unit or outside it.
Particular attention should be paid to cords at plugs, connection units and the point of exit from the unit.
Overloading - Do not overload outlets and extension cords, as this can result in fire or electric shock.
Object and Liquid Entry - Never push objects of any kind into the unit, as they may touch dangerous
voltage points or short out parts that could result in fire or electric shock. Never spill liquid of any kind on or
inside the unit.
Servicing - Servicing of the unit should only be undertaken by qualified service personnel, as opening or
removing covers may expose you to dangerous voltages or other hazards.
