Nortel Networks M3110 - Manual (Page 109)

M2016S Secure Set Page 109 of 504
Telephones and Consoles Description, Installation, and Operation
The upper right-hand key (key 07) automatically becomes the Program key
when a Display Module is configured with the telephone. The Program key
is local to the set and shows blank when you print key assignments in LD 20.
On-hook security
The M2016S is a Telephone Security Group Class II-approved telephone
designed to provide on-hook security. The M2016S uses relay circuitry that
physically disconnects the handset from the telephone circuit when the
switchhook is depressed.
On-hook security is indicated by the Message Waiting lamp. The red LED
triangle lights steadily when the phone is not secure (handset is off-hook,
phone is ringing or any time the handset/piezo relays are connected). The red
LED triangle blinks when a message is waiting.
Specifications
The following specifications govern the performance of the M2016S
telephone under the environmental conditions described.
Environmental and safety considerations
The M2016S meets the requirements of Electronic Industries Association
(EIA) specification PN-1361.
Temperature and humidity
Tables 13 and 14 show the M2016S temperature and humidity requirements.
Table 13
M2016S operating state temperature and humidity requirements
Temperature range 0° to 50° C (32° to 104° F)
Relative humidity 5% to 95% (non-condensing). At
temperatures above 34°C (93°F) relative
humidity is limited to 53 mbar of water vapor
pressure.