PS-SAU-1900E
Mar. 8
th
,1999 (Rev. 0.0)
--- CONFIDENTIAL AND PROPRIETARY ---
14
Message Waiting status. This tone will be applied
initially to an off hook analog telephone if the LAU
has received a network-provided
Message Waiting
command
.
Feature can be enabled and disabled.
Tone characteristics defined per Bellcore document
SR-INS-002461.
•
Loss of RF Tone:
Standard Reorder Tone.
•
Battery Low Tone:
2, 3, or 4 beep tone.
Individual tone duration is 250 mS, with a 50% duty
cycle. Tone occurs once every 10 minutes when
battery level drops within 30 minutes of full
discharge, and once every minute when battery
charge level drops within 5 minutes of full
discharge. Feature can be disabled.
Extension Support (Ringing)
Product must provide fully functional support for up to
4 REN equivalents. Typical electronic telephones
have RENs between 0.5 - 1.0. Electro-mechanical
phones are typically between 1.0 - 2.0. Four (4) REN
= 1.75 K
Ω
.
PBX/Key System Support
There is no current requirement for the LAU to
interface with PBX or key system trunk cards. It is
desirable
, but not required for the product to interface
with 1A2 and 1A3 trunks.
DTMF Tone Detection
The DTMF detection circuitry must detect any valid
DTMF tone which complies with the requirements of
EIA-470-A within 50 mSec of receipt over a 100
Ω
loop length.
Caller ID Number Delivery
Per industry specifications as follows:
•
Bellcore GR-30
•
Bellcore TR-NWT-000031
•
Cellular(PCS) Feature Specification
Caller Name Delivery
Per industry specifications as
•
Bellcore GR-30
•
Bellcore TR-NWT-001188
•
Cellular(PCS) Feature Specification
Note: This feature is not currently supported by the J-
STD-008 specification, although the basic hardware
capability will be available in the product. A general
message stating that “Name is Unavailable” will
appear on compatible Caller ID units.
Serial Interface
Logic level outputs. Special RS-232 converter is
required to interface to a computer.
Table 2.3.1.-1: Line Interface Functional Requirements.
