iDCS 100
INSTALLATION
TECHNICAL MANUAL
PART 5 JUNE 2002
5.2
service facility interface code for the E&M tie line is TL11M. This is a 2 wire Type 1 tie
line.
NOTE: When connecting an E&M tie line in “back to back” fashion you must
remember to reverse the E&M leads at one end ONLY i.e. connect the E lead
on one system to the M lead of the other system and vice versa.
5.5 ISDN BRI LINES
The iDCS 100 requires that an NT1 be connected between the iDCS 100 and the BRI
circuit provided by the Telephone Company. This is necessary to convert the circuit
from the U type 2 wire interface provided by the Telephone Company to an S/T type 4
wire interface used by the iDCS 100.
Using two pair twisted #24 AWG or #26 AWG jumper wires cross-connect any S4BRI
port to the output or CPE side of the NT1
For information regarding the ordering and programming of a BRI circuit please see the
Special Applications part of the Programming section of this manual.
5.6 T1 or PRI CIRCUIT
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 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.
3. See section 3.14 to ensure dip switch settings on the card are correct.
ORDERING A T1
The following information may be useful when ordering T1 service from the telephone
company.
HOME
PAGE
Table of
Contents