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TELEPHONE INTERFACE MODULE (TIM)
14-6
14.2.4 TYPE I AND V
A straight interconnect between the trunk circuit
and signaling circuit. Two conductors are signaling
and four are balanced audio (see Figure 14-4
Figure 14-4 TYPE I AND V
14.2.5 TYPE II AND III
A straight interconnect between the trunk circuit
and signaling circuit. Two conductors are signaling,
four are balanced audio and two are System Battery
and System Ground (see Figure 14-5).
Figure 14-5 TYPE II AND III
14.2.6 TYPE IV
This interface is a cross-connect between the
trunk circuit and signaling circuit. Two conductors are
signaling, four are balanced audio and two are System
Battery and System Ground. This type of interface has
the M-Lead and System Battery cross-connected (see
Figure 14-6).
Figure 14-6 TYPE IV
14.2.7 TYPE II TRUNK-TO-TRUNK
Some applications may require an interface to
another trunk circuit (e.g. PBX). This interface is a
cross-connect between trunk circuits. Two conductors
are signaling, four are balanced audio and two are
System Battery (SB) and System Ground (SG). The
System Battery and System Ground are cross-
connected with the E-Lead and M-Lead (see 14-
7Figure 14-6).
Table 14-2 E&M LEAD STATES
M-Lead States for Type I through V
Type
Idle
Active
I
Ground
-48V
II
Open
-48V
III
Ground
-48V
IV
Open
-48V
V
Open
Ground
E-Lead State for all Types
7 (Off), 8 (On)
Open
Ground
7 (On), 8 (Off)
Ground
Open
TRUNK
CIRCUIT
E-LEAD
M-LEAD
RX AUDIO
TX AUDIO
TR1
RR1
T1
R1
E-LEAD
M-LEAD
RNT
SIGNALING
CIRCUIT
TRUNK
CIRCUIT
E-LEAD
M-LEAD
RX AUDIO
TX AUDIO
TR1
RR1
T1
R1
E-LEAD
M-LEAD
RNT
SIGNALING
CIRCUIT
SB
SG
SB
SG
TRUNK
CIRCUIT
E-LEAD
M-LEAD
RX AUDIO
TX AUDIO
TR1
RR1
T1
R1
E-LEAD
M-LEAD
RNT
SIGNALING
CIRCUIT
SB
SG
SB
SG
Содержание 3000 SERIES
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Страница 12: ...TABLE OF CONTENTS viii TABLE OF CONTENTS CONT D This page intentionally left blank ...
Страница 20: ...3000 SERIES SWITCH 2 6 This page intentionally left blank ...
Страница 26: ...ARCHITECTURE 3 6 This page intentionally left blank ...
Страница 58: ...CALL PROCESSOR 5 4 This page intentionally left blank ...
Страница 76: ...BASIC BOARD MODULE BBM 7 14 This page intentionally left blank ...
Страница 83: ...CHANNEL INTERFACE MODULE CIM 8 7 Figure 8 3 SUMMATION BOARD ALIGNMENT POINTS DIAGRAM ...
Страница 84: ...CHANNEL INTERFACE MODULE CIM 8 8 This page intentionally left blank ...
Страница 88: ...CONVENTIONAL CHANNEL MODULE CCM 9 12 This page intentionally left blank ...
Страница 92: ...DISPATCH CHANNEL MODULE DCM 10 4 This page intentionally left blank ...
Страница 100: ...DISPATCH INTERFACE MODULE DIM 11 8 This page intentionally left blank ...
Страница 142: ...TELEPHONE INTERFACE MODULE TIM 14 32 This page intentionally left blank ...
Страница 146: ...VOTER DIAGNOSTICS MODULE VDM 15 4 This page intentionally left blank ...
Страница 148: ...POWER TERMINATION MODULE PTM 16 2 Figure 16 1 POWER TERMINATION MODULE ALIGNMENT POINTS DIAGRAM ...
Страница 156: ...VOICE TONE MODULE VTM 18 4 This page intentionally left blank ...
Страница 164: ...WIDE AREA MODULE WAM 19 8 This page intentionally left blank ...
Страница 174: ...CONVENTIONAL PATCH MODULE CPM 21 4 This page intentionally left blank ...
Страница 178: ...POWER SUPPLY 22 4 Figure 22 6 POWER SUPPLY DRAWER ...
Страница 196: ...INTERCOM 24 2 This page intentionally left blank ...
Страница 200: ...ERROR MESSAGES A 4 This page intentionally left blank ...
Страница 214: ...Part Number 001 3139 005 10 03 Printed in U S A ...