Samsung OfficeServ 7400 Technical Manual page 87

OfficeServ 7400
TECHNICAL MANUAL
6.2 CONNECTING C.O. LINES
6.2.1 Connecting Common C.O. Lines
Use a twisted pair of wires with AWG #24(or AWG #26) width to connect a common
C.O. line to the terminal pin of a terminal box connected to the OfficeServ 7400 system
equipped with an 8TRK board.
Pin No.
Function
6.2.2 Connecting T1/E1/PRI
TEPRI/TEPRIa/TEPRI2 boards can be connected to a T1/E1 C.O. line through a RJ-45
port. As shown below, connect a T1 C.O. line or an E1 type PRI C.O. line to the
T1/E1/PRI port of the OfficeServ 7400 system.
Using a standard, straight through eight conductor data cable or straight through eight
conductor line cord to connect the customer provided Channel Service Unit (CSU) to
the TEPRI/TEPRIa/TEPRI2 card as shown in
NOTES:
1. It may be necessary to cut off the CSU end of the cable and attach a different
connector to match that of the CSU. If possible, this connection should be soldered
because good connections are critical.
2. It is recommended that the CSU be connected to the network interface with a cable
supplied by the CSU manufacturer. If this is not possible or practical, a custom
cable has to be made up. This cable should be made from 22 gauge two pair cable
with each pair individually shielded. It is recommended that the connections on this
cable be soldered wherever possible to ensure good connections. The shielding of
the cable should be connected to ground at the CSU end only to prevent a ground
loop.
ORDERING A T1
The following information may be useful when ordering T1 service from the telephone
company.
1 2 3
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Figure 6.1 8TRK Board
6.2
Home Page
P1-P8 Port
(RJ-45)
4 5 6
C.O. C.O. -
TIP RING
Figure 6.2.
Table of Contents
INSTALLATION
PART 6 JUNE 2006
7 8
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