Off-Premise Extensions / On-Premise Slt Extensions; Ringing For Incoming Calls; One-Touch Keys - NEC DS1000 Product Description

Section 3: Features

Off-Premise Extensions / On-Premise SLT Extensions

One-Touch Keys

66 Section 3: Features
Connect analog devices
such as single line
telephones, fax machines
and voice mail systems to the
system.
type (DTMF) analog telephone devices. This includes telco OPX circuits (DS2000 only), on-
premise single line telephones (SLTs), fax machines, modems and Voice Mail ports. The DS1000
and DS2000 systems do not provide the signaling required to light SLT Message Waiting lamps.
In DS2000, off-premise SLTs can connect to 2-OPX Modules. On-premise SLTs can connect to
2-OPX Modules or ASTU PCBs.
DS2000 ASTU PCBs are available in two models, providing 4 and 8 ports, respectively. Each ASTU
port provides power and ring voltage for the connected SLT. ASTU PCBs use system DTMF receiv-
ers. The CPU provides 10 DTMF receivers that are shared by all devices connected to ASTU ports.
Each DS2000 2-OPX Module provides two OPX ports. The first 2-OPX extension number is the
same as the port's extension number. The second 2-OPX extension number is the first port plus 201.
For example, the two extension numbers for the 2-OPX module plugged into extension 314 are 314
and 515. In addition, the 2-OPX Module has its own DTMF receivers (one for each port), internal
ring generator and power supply to provide the connected SLT with power and ring voltage.
In DS1000, on-premise SLTs connect to dedicated analog ports in the main equipment cabinet.
DS1000 does not support off-premise extensions via 2-OPX Modules.

Ringing For Incoming Calls

On- and Off-Premise single line extensions can ring directly for the following types of calls:
Direct Inward Line (page 40)
Intercom (page 56)
Group Ring (page 52)
Ringdown Extension (page 76)
Transfer (page 92)
Feature Quick Steps
Refer to the Single Line Telephone Quick Reference Guide (P/N 80000SLT**).
Available for Personal Speed Dial. Refer to Speed Dial on page 80.
Availability: All DS2000 versions.
• 2-OPX Modules require DS2000 02.00.01.
• 2-OPX Modules are not available in DS1000.
The system is compatible with 500 type (dial pulse) and 2500
DS1000/2000 Product Description