Paradyne HOTWIRE 7925 Manual de usuario

7925-A2-GK40-10 September 1997

HotWire 7925-A1 E1 HDSL Standalone Termination Unit

Errata

Document Number 7925-A2-GK40-10

September 1997

Errors and exclusions in the User’s Guide (Document No. 7925-A2-GB20-30) were detected after

printing. Please make note of the following corrections.

The following information should be included on page 1-1: Up to ten standalone units may be installed in

an optional HotWire 7900 10-slot Standalone Shelf, using a single power source. (The Standalone Shelf

is required for the –48 Vdc standalone model.)

The defaults shown on page A-2 are Terminal mode factory defaults. Switchpack mode defaults are

shown in this document.

Use the following illustration rather than the one on page C-2:

97-15266-0

P11

Switchpack S1 VT100 Terminal

Modular Jack

Jumper P11

HDSL Line Jack

C31

C33

Position

6, 7

Settings*

OFF = CP

ON = CO

OFF = AMI line

encoding

ON = HDB3 line

encoding

OFF = Loops A and B

ON = Loop A

Must be OFF when

in Switchpack Mode

OFF = 75 ohm line

build-out

ON = 120 ohm line

build-out

Must be OFF when

in Switchpack Mode

OFF = Unframed

ON = Framed

Pins*

1-2

2-3

Settings*

Terminal Mode

Switchpack Mode

Jumpers C31, C33

Pins*

1-2

2-3

Settings*

75 ohm line

build-out

120 ohm line

build-out

* Default in bold

Jumpers P6, P7

Pins*

1-2

2-3

Settings*

120 ohm line

build-out

75 ohm line

build-out

678

12345

123 123

P10

123

P8 P12

123

321

123

Figure C-1. G.703-Compatible Unit Switchpack and Jumper Locations

2 7925-A2-GK40-10

September 1997

Use the following illustration rather than the one on page C-4:

97-15265-0

V.35

Switchpack S1 Switchpack S2

Jumper P8

VT100 Terminal

Modular Jack

HDSL Line Jack

Position

4, 5

6, 7, 8

Settings*

OFF = CP

ON = CO

OFF = Loops A and B

ON = Loop A

unused

00 or 11 = Internal

Clock

01 = External Clock

10 = Loop Clock

unused

Position

Settings*

ON = 64 kbps

ON = 128 kbps

ON = 192 kbps

ON = 256 kbps

ON = 384 kbps

ON = 512 kbps

ON = 768 kbps

ON = 1024 kbps

All ON = 64 kbps

All OFF = 2048 kbps

Pins*

1-2

2-3

Settings*

Terminal Mode

Switchpack Mode

* Default in bold

678

12345 678

12345

P1 P2

123

123 321

123

P10 P11

123

321

Figure C-2. V.35-Compatible Unit Switchpack and Jumper Locations



*7925–A2–GK40–10*

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