Rockwell international Wescom 7306-06 Manual

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Rockwell
International
Wescom Te.e\)hone Products Division
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WTPD Practices
Section 730-606·203
Equipment Issue 3
Fi rst Printing, May 1987
Wescom 7306-06 DX1/DX2 4/2-4 Terminal Repeater
CONTENTS
PAGE
Part 1. GENERAL . . . . . . . . 1
Part
2.
APPLICATION GUIDELINES
2
Part
3.
CIRCUIT DESCRIPTION
2
Part 4. INSPECTION . . . . . . .
S
Part 5.
MOUNTING . . . . . . .
S
Part 6. INSTALLER CONNECTIONS 6
Part
7. OPTIONS. . .
6
Part 8. ALIGNMENT. 12
Part 9. TESTING
.
.
12
Part 10. WARRANTY. 15
Part 11. SPECIFICATIONS . 15
1. GENERAL
1.01 The Wescom 7306-06 DX 1/DX2 4/2-4
Terminal Repeater is a 400-type plug-in Combined
Function Module that combines the functions of
a 4-wire to 4-wire or 2-wire terminal repeater and
a DX to E&M signaling unit. The 7306-06 is shown
in Figure 1. (Excerpts from this Practice, covering
installation and testing only, is available in Section
730-606-303.)
1.02 Whenever this Practice
IS
reissued, the
reason for reissue will be stated in this paragraph.
1.03 The 7306-06 provides the following
features:
Transmission
• Switch-selectable SIDE B terminating
impedance of 150,600 or 1200 ohms
• 4W SIDE A terminating impedance of 600
ohms
•. 2W SIDE A terminating impedance of 600
ohms in series with 2. 15jlF
• Front-panel-mounted prescription gain or
attenuation in both transmission paths
• Western Electric type 309B prescription
adjustable post (receive) equalizer in the B
toAamplifier
.,.
,
.r
figure 1. 7306-06 DX1/DX2 4/2-4
Terminal Repeater
• Equalizer bypass option for flat frequency
response applications
• -Switch-selectable 4W-4W, or 2W·4W
operation
• B to A (receive) IN, MON (monitor), and
. OUT bantam test jacks
• A to B (transmit) IN/2W, OUT and MON
bantam test jacks
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