NEC SV8500, Руководство пользователя

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VOL.3-40
CHAPTER 1 TERMINALS
3.2 Installation Procedure
STEP 1: Run the cables between each Digital terminal and its modular block (jack), and between the modular
blocks and the MDF. (Protect the cables by using cable ducts, etc.)
STEP 2: Install an ELC circuit card into a proper slot of PIR for connecting Digital terminals. For more infor-
mation about ELC circuit card, refer to Circuit Card Description. When the Digital terminal is con-
nected to a vacant port of the existing ELC card, this step is not necessary.
STEP 3: Terminate the installation cables to the MDF and the modular blocks.
STEP 4: Check the terminal locations on the MDF. To identify the lead names and the lead’s terminal locations,
refer to LT Connector Lead Accommodation of the circuit card in the Circuit Card Description.
STEP 5: Provide the necessary cross connection on the MDF referring to the following figure.
Figure 1-3 How to Connect Digital terminal
Note:
Be sure to use 2-wire cable (1-pair cable). If using 4-wire cable (2-pair cable), connect the wire to No.2
and No.3, and disconnect from No.1 and No.4, on the modular rosette.
For the procedure how to mount the DT300 Series on the wall, refer to 1.4.2Wall Mounting of DT700/DT300
Series .
Telephony Server
LT connector Cable
ELC
A0
A15
B0
B15
MDF
Maximum 850 m. (2789 feet)
1-pair cable
Modular Rosette
Modular Connector
PIR
Digital Terminal
1
2
3
4
(Note)
1
2
3
4
The pin number is corresponding to
the number shown in the Modular Ro
-
sette above. This drawing indicates
the case that the Modular Rosette is
seen from the Modular Connector side.