Multi-Tech MultiModem ISDN MT128ISA-UV, User Manual

Page: 12 / 85

13
Chapter 2 - Installation
MT128ISA/PCI
Terminal
Terminal
Terminal
NT2
(PBX)
NT1
Point “S”
4-8 Wires
Point “S”
Point “S”
Point “T”
4-8 Wires
Point “U”
2 Wires
Figure 2-1 ISDN Interface Points
S/T Interface
The S/T interface uses an 8-conductor modular cable terminated with an 8-pin RJ-45 plug.
An 8-pin RJ-45 jack located on the terminal is used to connect the terminal to the DSL
(Digital Subscriber Loops) using this modular cable.
Table 2-1 shows the Pin Number, Terminal Pin Signal Name and SILC Pin Signal name for
the S/T interface.
Pin Number Terminal Pin Signal Name SILC Pin Signal Name
1 Power Source 3 Not applicable
2 Power Source 3 Not applicable
3 Tx+ Rx+
4 Rx+ Tx+
5 Rx- Tx-
6 Tx- Rx-
7 Power Sink 2 (-) Not applicable
8 Power Sink 2(+) Not applicable
Table 2-1. S/T Interface Connector Specification
U Interface
The U interface uses a 2-conductor twisted pair cable terminated with an RJ-45 jack. An RJ-
45 jack located on the terminal is used to connect the terminal to the Digital Subscriber
Loops using this twisted pair cable.
In Table 2-2 the Pin Number, Terminal Pin Signal Name and UILC Pin Signal Names for the
U interface are listed.
Pin Number Terminal Pin Signal Name UILC Pin Signal Name
1 Not Used Not applicable
2 Not Used Not applicable
3 Not Used Not applicable
4 Tip or Ring Tip or Ring
5 Tip or Ring Tip or Ring
6 Not Used Not applicable
7 Not Used Not applicable
8 Not Used Not applicable
Table 2-2. U Interface Connector Specification