NEC Ds2000 Hardware Manual Instructions Manual

							2. PCB Installation
2-19
CONNECTING BLOCKS
80000 - 33
Figure 2-16  SECURING THE CABLESFigure 2-17  INSTALLING THE RFI SUPPRESSOR
80000 - 67
!! If you are using non-A PCBs in a 4 Slot Cabinet,
install RFI Suppressor Assemblies on your station
and trunk cables as shown below !!
The suppressors mustbe mounted inside the cabinet and as
close to the appropriate PCB as possible. 
						

							2-20
CONNECTING BLOCKS
Figure 2-18  8-PIN (RJ61X) JACK PINOUTS
RJ61X 
Pin
Latch
faces upTo CPU
Mod Jack
Note
reversalPort
DesignationTo 66 Block
WHT-BLU (1T)
BLU-WHT (1R)
WHT-ORN (2T)
ORN-WHT (2R)
WHT-GRN (3T)
GRN-WHT (3R)
WHT-BRN (4T)
BRN-WHT (4R)
80000 - 18C
4T
3T
2T
1R
1T
2R
3R
4R
1
2
3
4
5
6
7
8
The following products should help if you make your own cables:Suttle SE-266-8K 8 Position Modular Plug (requires an SE-166
or SE-166-6 modular crimping tool).Hubbell BRFTP4P Snap-On 8 Position Modular Plug (does not
require a special crimping tool).
Check with your local supplier for other comparable products. 
						

							In this section . . .
Page
Connecting Extensions  . . . . . . . . . . . . . . . .3-2
Connecting Extensions . . . . . . . . . . . . . . . . . . 3-2
Connecting Trunks  . . . . . . . . . . . . . . . . . . .3-3
Connecting Analog Trunks . . . . . . . . . . . . . . . 3-3
Power Up and System LEDs  . . . . . . . . . . .3-4
Power Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Finishing the Installation  . . . . . . . . . . . . . .3-6
Reinstalling the Side Panel . . . . . . . . . . . . . . . 3-6
Reinstalling the Front Cover . . . . . . . . . . . . . . 3-7
3. Installing
Extensions and Trunks
3-1
Section 3, INSTALLING EXTENSIONS AND TRUNKS 
						

							3-2
CONNECTING EXTENSIONS
Connecting Extensions (Figure 3-1)
Each 16DSTU PCB connects 16 digital extensions. Each
8ASTU PCB connects 8 analog extensions. Each 4ASTU PCB
connects 4 analog extensions.
1. Using Figure 2-14 as a guide, insert the mod jacks into the
appropriate connector on the PCB.
2. Install a modular jack for each extension within 6 feet of the
telephone’s location.
3. For each extension, run one-pair 24 AWG station cable from
the cross-connect block to the modular jack.
4. Terminate the station cable WHT/BLU - BLU/WHT leads to
the RED and GRN lugs in the modular jack.
5. Back at the main equipment location, run one pair of cross-
connect wire between the pins on the B block and cross-con-
nect block to complete the connection.
6. Install bridging clips as required.
You can also connect analog extensions to 2-OPX
modules. See page 4-16 for more.
Figure 3-1  CONNECTING EXTENSIONS
625
Modular
Jack
25-Pair
Installation Cable
(P/N 80892)
BLK YEL
RED
GRN BLU-WHT
WHT-BLU
Cross
Connect
Block One-Pair
Cross Connect
Station
Block
80000 - 36A 
						

							3. Installing
Extensions and Trunks
3-3
CONNECTING TRUNKS
Connecting Analog Trunks (Figure 3-2)
Each 8ATRU PCB connects 8 loop start CO trunks. Each 4
ATRU PCB connects 4 loop start CO trunks.
In Fixed Slot systems, a 4ATRU PCB enables the first
4 trunks (1-4) but disables the second 4 (5-8). With 2
4ATRU PCBs installed, your system has trunks 1-4
and 9-12.
1. Using Figure 2-15 as a guide, insert the mod jacks into the
appropriate connector on the PCB.
2. For each trunk, run one pair cross-connect wire between the
pins on the cross-connect block and the CPE (customer side)
of the telco’s RJ21X.
3. Install bridging clips as required.
Figure 3-2  CONNECTING ANALOG TRUNKS
25-Pair Cable
to Central Office
25-Pair
Installation Cable
(P/N 80892)Telco
RJ21X One-Pair
Cross Connect
A
Block
80000 - 37 
						

							3-4
POWER UP AND SYSTEM LEDS
Power-Up (Figures 3-3 to 3-5)
Now that all the PCBs you need are installed and you have
cabled the system, you can now power-up. You do not need to
reattach the right side panel before powering up the system.
Leaving the right side panel removed makes the station and
trunk cabling more accessible.To power up the system:
1. Make sure the system is properly grounded and the PCB
bracket is reinstalled and secured.
2. Install surge protectors in the AC outlet you intend to use for
system power.
3. Plug the main cabinet’s AC power cord into its surge protector.
4. Turn on the main cabinet power switch.
After about 30 seconds, verify that the PCB LEDs
agree with the illustrations at right and on page 3-5.
+ 5 V DC 
(Green)
On: +5 V DC power present
Off: +5 V DC power not present- 5 V DC 
(Green)
On: -5 V DC power present
Off: -5 V DC power not present
➠
indicates the LEDs normal (i.e., system OK) status.➠
➠
➠
- 40 V DC 
(Green)
On: -40 V DC power present
Off: -40 V DC power not present
Figure 3-3  POWER SUPPLY STATUS LEDS 
						

							3. Installing
Extensions and Trunks
3-5
POWER UP AND SYSTEM LEDS
PC
A
Major Alarm 
(Red)
On: Major alarm present
Off: Major alarm not present
➠
indicates the LEDs normal (i.e., system OK) status.➠
➠
➠
Minor Alarm 
(Red)
On: Minor alarm present
Off: Minor alarm not present
➠
RS-232 Port 
(Yellow)
Flashing: RS-232 port active
Off: RS-232 idle
➠
PC Card 
(Red)
Flashing:PC card write/read active
Off: PC card idle
3-4  CPU STATUS LEDS
Port Activity 
(Yellow)
Off: All ports on PCB idle.
Flash: Port(s) busy. The faster
the flash, the more ports
are busy.
➠
indicates the LEDs normal (i.e., system OK) status.➠
➠
Figure 3-5  DSTU, ASTU and ATRU STATUS LEDS
CPU Running 
(Green)
Slow flash: CPU OK
On: CPU starting
Sync Status 
(Green)
Fast flash: PCB running, waiting
for sync. Same as
having mode switch
set to stop.
Slow flash: PCB running, in sync. 
						

							3-6
FINISHING THE INSTALLATION
Reinstalling the Side Panel (Figure 3-6)
To reinstall the side panel:
1. Carefully realign the right side panel and slide it into position.
2. Reattach the two screws that secure the right side panel to
the cabinet.
Figure 3-6  REINSTALLING THE SIDE PANELS
80000 - 16 A
4 Slot Cabinet
Shown 
						

							3. Installing
Extensions and Trunks
3-7
FINISHING THE INSTALLATION
Reinstalling the Front Cover (Figure 3-7)
To reinstall the front cover:
1. Hook the tabs on the rear of the cover into their associated slots.
2. Push the front of the cover into place.
3. Screw in the two captive screws that secure the cover to
the cabinet.
Figure 3-7  REINSTALLING THE FRONT COVER
80000 - 12 A
4 Slot Cabinet
Shown 
						

							3-8
— For Your Notes —