Nitsuko Digital System Businesscom Ds01 Hardware Manual

Installing a Modem
You can connect a modem to the AUX Module serial port for remote program-
ming and diagnostics.
To connect the AUX Module to a modem (DCE):
1.Plug a DB9-DB25 adaptor into the AUX port. The DB9 must be female.
2.Connect one end of the RS-232 cable to the adaptors DB25 connector.
OR Connect a 25-pin null-modem cable into the adaptors DB25 connector.
3.Connect the other end of the RS-232 cable to a DCE-DCE adaptor.
Skip Step #3 when using a null modem cable.
4.Connect the other end of the...

Installing Battery Backup (Optional)
One Valcom VPB-260 battery backup unit provides a CEU with short-term power
(2 hours - max.) during a commercial AC power failure. One per CEU max.
To install the VPB-260:
1.Mount the VPB-260 on the MDF backboard within 3 of the CEU. Follow
manufacturer’s mounting instructions.
2.Power down the CEU’s power supply.
3.Plug the VPB-260 3-pin female plug into the 3-pin male AUX POWER
connector on the CEU.
4.Plug the VPB-260 power cord into a dedicated 120VAC outlet....

6. BATTERY BACKUP AND POWER FAILURE TELEPHONES
N1853 - 32
BLK YELRED
GRN
BLUWHT
BLK YELRED
GRN
BLUWHT
BLK YELRED
GRN
BLU
WHT
4    3    2    1   PFT
4CO
Installing Power Failure (PF) Telephones (Optional)
The first circuit in each 4CO or 4CO/CND module (1/5, 9/13, 17/21) provides a PF
cut-through relay. Each PF relay, corresponding modular jacks, and cross-connec-
tions redirect a CO line to a 500/2500 single line telephone for full incoming\outgoing
operation during an AC power outage.
To install a PF...

Installing the Digital Door Box
The Digital Door Box (P/N 88545) provides one-button signaling and intercom. Up to four
Digital Door Boxes can be installed at extensions 310, 311, 322, and 323 only. Each Digital
Door Box provides a distinctive chime signal. Any keyset can receive any/all chime signals.
To install the Digital Door Box:
1.Snap open the Door Box case.
2.Punch down one end of a two-pair twisted station cable on the extension block as shown
below. 
Digital Door Boxes have the same cabling...

Operation
To activate relays from a multibutton set:
1.Lift handset to answer the Door Box chimes. 
If you have a Door Box Hotline or Call Coverage key, you can press it
instead.
OR
Place call to Door Box.You can press Intercom and dial the Door Box extension number. You can 
also press your Door Box Hotline or Call Coverage key (if you have one).
2.Talk to the visitor at the door.
3.Press and hold FTR.
The relay activates as long as you hold down the FTR key
(up to 60 seconds).
4.Hang up when you are...

CEU Specifications: Lines Stations
Main CEU 8 24
Expansion CEU #1 8 24
Expansion CEU #2 8 24
Total 24 72
System Capacity:
Power Failure Cut-Through Circuit 1 per CO Module
Talk Timeslots (Intercom/lines) Non-blocking
DTMF Tone Duration (manual dial) 256 ms on/128 ms off
DTMF Tone Duration (speed dial) 128 ms on/128 ms off
Internal Page Zones 7 (and all-call)
External Page Zones 1 output per Main & Exp.CEU #1
External Control Relay Circuits 1 set of contacts per Main & Exp. CEU #1
Electrical...

8. SPECIFICATIONS
Mechanical Specifications
Width Height Depth Weight
CEU 14 5/16 9 1/4 3 3 lb, 11 oz
39.2 cm 23.7 cm 7.6 cm 1.7 kg
CO Module 6 3/4 6 3/4 1 1/2 1 lb
17.1 cm 17.1 cm 3.8 cm .5 kg
Station Module 6 3/4 6 3/4 1 1/2 1 lb
17.1 cm 17.1 cm 3.8 cm .7 kg
Power Supply 2 13/16 5 2 3/4 3 lbs
7.2 cm 12.7 cm 7.0 cm 1.4 kg
Keysets  3 1/2 7 1/2 10 1/8 2.7 lb
8.9 cm 19.1 cm 25.8 cm 1.3 kg
NOTE:Weight of CEU is with modules not installed.
Environmental Specifications
Refer to the Standard Practices Manual...

Description Part Number
Common Equipment
Power Supply .............................................................................................................60001
CEU - (includes: 1 Common Equipment Unit base + 1 - 60001 + RFI beads,
no modules) ................................................................................................................88600
4x12 Kit (no phones): .................................................................................................88601
1 - 88600...

9. PARTS LIST
CEU/Power Supply Site Requirements
Choose a central site for the MDF plywood backboard, with-
in 7’ of a dedicated AC outlet and 25’ of earth ground.
Allow space for multiple CEU’s and power supplies. CEU’s
must be located within 3’ of each other. Power supplies
must be located within  6’ of  the CEU and within 6’ of a
dedicated AC outlet. See Figure 1.
Allow space for telco and station connectors, all ancillary
equipment (ie; BGM/MOH source, voice mail, external pag-
ing equipment), and...

9. PARTS LIST
Description Part Number
Other Station Equipment
DSS Console (Taupe) ................................................................................................88655
DSS Console (Graphite) .............................................................................................88675
Digital Door Box..........................................................................................................88545
Relay Box...