NEC Infoset 408 System Manual

Issue 1AInfoSet 408
1 - 4System Overview
ETW-4R-1(BK) TELThis 
Dterm Cordless telephone can be connected to the system 
using an ESI port.  The telephone has a cordless handset, a 
10-digit, 2-line, LCD, dial pad, TALK key, HOLD key, TRF key, CNF 
key, SPD key, a MSG LED, optional buzzer and four function keys 
with red LEDs.  
The 
Dterm Cordless telephone can be switched to an Electra Elite 
telephone, which is connected to it, by pressing the DESK key on 
the base unit of the idle 
Dterm Cordless...

InfoSet 408Issue 1A
System Manual1 - 5
SECTION 3POWER REQUIREMENTS
The InfoSet 408 KSU has eight dedicated slots, one each for BRT/COI, ESI, VMS/
SLI, PBR, DPH, MIF, and DSL ETUs.
3.1 Power Supply Inputs
The AC input requirements for the InfoSet 408 system are listed below.
AC Input

11 7  Va c  ± 1 0 %

60 Hz ± 10%

Single Phase

12A circuit

A dedicated outlet, separately fused and grounded, is required.
 Adapters and Optional Units
ACA-U UnitThe AC Adapter unit connects to one of the following:  APR-U...

Issue 1AInfoSet 408
1 - 6System Overview
3.2 Power Supply Consumption
The power consumption for the InfoSet 408 system is listed in Table 1-2
Power Consumption.   
 
SECTION 4CABLING REQUIREMENTS AND SPECIFICATIONS
This section provides cabling requirements and specifications for various equipment
used in the InfoSet 408 system.

BRT(1)-B10 ETU

COI(2)-B10 ETU

DPH-B10 ETU

ESI(3)-B10 ETU

SLI(2)-B10 ETU
The KSU is connected with each of the Multiline Telephones and Single Line
Telephones by a separate...

InfoSet 408Issue 1A
System Manual1 - 7           
 
DTU-16D-2(BK)/(WH) TEL 26 450 900
DTU-32-1(BK)/(WH) TEL 21 360 720
DTU-32D-2(BK)/(WH) TEL 21 360 720
ETW-4R-1 (BK) TEL N/A 650 650
SLT(1)-U10 ADP 35 600 1000
The length for the specified SLT Adapter is the length between the SLT Adapter and 
the ESI port.
The loop resistance for the DTP-1-1 (WH) TEL and the DTP-1HM-1 (WH) TEL includes 
the resistance of the single line telephone.
The loop resistance for the DP-D-1A does not include the resistance of...

Issue 1AInfoSet 408
1 - 8System Overview
SECTION 5ENVIRONMENTAL CONDITIONS
5.1 Temperature

Operating:   +32°F ~ +104°F (0°C ~ 40°C)

Recommended Long Term:   +50°F ~ +90°F (10°C ~ 32.2°C)
5.2 Humidity

Operating:   10% ~ 90% noncondensing
SECTION 6WEIGHTS AND  DIMENSIONS
Table 1-5 Weights and Dimensions shows shipping weight, height, width, and depth
for the InfoSet 408 KSU, optional ETUs, telephones and adapters.   
Table 1-5   Weights and Dimensions
           
UnitShipping 
Weight*Height Width Depth...

InfoSet 408Issue 1A
System Manual1 - 9
SECTION 7OUTSIDE LINE TYPE
The following outside line types can be used with the InfoSet 408 system.

2-wire, Loop Start Trunks

ISDN-BRI Trunks (2B)
DTU-32-1(  ) (BK)/(WH) TEL46 oz
(1304 g)4.8”
(123 mm)8.7”
(220 mm)9.3”
(235 mm)
DTU-32D-2 (BK)/(WH) TEL48 oz
(1361 g)4.8”
(123 mm)8.7”
(220 mm)9.3”
(235 mm)
DTP-1-1 (WH) TEL26.8 oz
(760 g)2.36”
(60 mm)6.22”
(158 mm)8.81”
(224 mm)
DTP-1HM-1 (WH) TEL26.8 oz
(760 g)2.36”
(60 mm)6.22”
(158 mm)8.81”
(224 mm)
DTP-2DT-1 (WH)...

Issue 1AInfoSet 408
1 - 10System Overview
SECTION 8NETWORK AND CONTROL
8.1 Transmission, Network, and Control Specifications
8.1.1 Transmission

Data Length
From Multiline Telephone to ESI(3)-B10 ETU: 23 bits
From ESI(3)-B10 ETU to Multiline Telephone: 23 bits

Data Transmission Rates:
Between ESI(3)-B10 ETU and Multiline Telephone: 184K
bps (voice and signaling)

Scanning Time for each Multiline Telephone:  32 ms.
8.1.2 Network
Time Division Multiplexing allows transmission of a number of
separate data,...

InfoSet 408Issue 1A
System Manual1 - 11 
Multiline Telephone
Voltage:   -11 ~ -26 Vdc
Maximum Current:  250 mA

Single Line Telephone
Standard 2500 Set:  500 type network
Nominal Current:  35 mA
Ring Signal:  56 Vac RMS @ 20 Hz

SLT(1)-U10 ADP
Standard 2500 Set:  500 type network
Nominal Current:  30 mA
Ring Signal:  56 Vac RMS @ 20 Hz

APR-U Unit
Standard 2500 Set:  500 type network
Nominal Current:  30 mA
Ring Signal:  70 Vac RMS @ 18 Hz
SECTION 9EXTERNAL EQUIPMENT CONNECTION
9.1 Music Sources for...

Issue 1AInfoSet 408
1 - 12System Overview
9.3 External Tone Ringer

Output Level:  –10 dBm

Output Impedance:  600 



Relay Contact Rating:  1A, 24 Vdc 
9.4 SMDR Output

Male Connector (System Output) Standard RS-232C (DB-9)
9.5 PC Connection

Male Connector (System Output) Standard RS-232C (DB-9)
9.6 Relay Contact

All Relay Contact Ratings:   1A, 24Vdc
SECTION 10 BATTERY BACKUP
The InfoSet 408 system has battery backup functions for system backup and for
memory backup.
10.1 System Backup
During a...

System Manual2 - 1
Installation
 

SECTION  1 BASIC INSTALLATION
This section provides instructions for the basic installation of the system.  Before
the system is operational the backup battery must be attached, the lithium battery
that retains system memory must be installed, the memory backup switch must be
moved to the “Hold” position, and the system must be wall mounted.  
There are two standard configuration which can be expanded to a maximum of
four trunk lines (ports) and eight telephones...