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3.3.19 TMQ4 (for U.S. Only)

Introduction

An ISDN BRI trunk module (TMQ4) connects up to four digital trunks to the OfficeCom and OfficePoint.

The TMQ4 Module provides basic rate interface (BRI) ISDN via a U2B1Q interface. The interface supports the following central office protocols:

AT&T 5Ess NI-1
AT&T 5ESS Custom
Nortel DMS100 NI-1
Siemens EWSD NI-1

Interfaces

Figure 3-66 TMQ4 Module Interfaces (for U.S. Only)

Interface Assignments

Table 3-66 TMQ4 Module Interface Assignments (for U.S. Only)

Pin 
Connector X2 
Port 
 
Pin 
Connector X2 
Port 
R trunk 1 
 
R trunk 3 
T trunk 1 
T trunk 3 
R trunk 2 
R trunk 4 
T trunk 2 
T trunk 4 

Note: Pinouts shown are at the board itself. The supplied main distribution frame cable (MDF cable) reverses the signal order before the MDF.

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