Txport 2000 csu rear panel, Circuit board view, Nms connection – Verilink 2000 ESF CSU Standalone (CG) Configuration/Installation Guide User Manual

Page 2: N ot used ) optional db-15 connection, Power/alarm connection, Network cable lengths

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Switch S3

1

8

7

6

5

4

3

2

S4-1: T1.403 PRM:

Down - enabled

Up - disabled

S4-2: Audible Alarm (buzzer)

Down - disabled

Up - enabled

NOTE: For future reference, all
DIP switches are provided with
upper and lower boxes to check
according to the particular user
selection. Factory default set-
tings are shown underlined.

NET/DTE Connection

Pin

DTE NET

1

Data Out

Data In

2

Data Out

Data In

3

Not used

Not used

4

Data In

Data Out

5

Data In

Data Out

6

Not used

Not used

7, 8 Chassis gnd

Chassis gnd

NMS Connection

Pin

NMS In/Out

NMS Out

1

Not Used

Not Used

2

Signal Gnd

Signal Gnd

3

Data Out

Data Out

4

Data In

Not Used

5

Signal Gnd

Signal Gnd

6

Not Used

Not Used

8

6

5

4

3

2

1

Dn

Up

7

8

6

5

4

3

2

1

Dn

Up

7

8

6

5

4

3

2

1

Dn

Up

7

Network LBO: Sets the output signal
level of the transmitted data.

S3- 1 S3-2 Line Build Out

Dn

Dn

0 dB

Dn

Up

- 7.5 dB

Up

Dn

- 15.0 dB

Up

Up

- 22.5 dB

S4-3 S4-4

Boot Mode

Dn

Dn

Boot from Switches

Dn

Up

Boot from RAM

Up

Dn

Boot from Manager

Up

Up

Boot from ROM

S4-5 S4-6

SUPV Port Rate

Dn

Dn

19200 bps

Dn

Up

9600 bps

Up

Dn

2400 bps

Up

Up

1200 bps

S4-7 S4-8

NMS Port Rate

Dn

Dn

19200 bps

Dn

Up

9600 bps

Up

Dn

2400 bps

Up

Up

1200 bps

S5-1: Network Line Framing - matches the CSU to
the framing of the network line.

Down - ESF

Up - D4

S5-2: DTE Line Framing - Matches the CSU to the
framing of the DTE line.

Down - ESF

Up - D4

S5-3: Network Line Coding

Down - AMI

Up - B8ZS

S5-4: DTE Line Coding

Down - AMI

Up - B8ZS

S5-5: Network AIS - Sets the all ones signal sent
out to the network in a Keep Alive condition.

Down - Unframed

Up - Framed

S5-6: Network Keep Alive Mode - Selects the ac-
tion to occur on a DTE loss of signal.

Down - Send AIS

Up - Loop NET data in to

NET data out

S5-7: ESF CRC Mode - Regenerates the CRC
code or passes the CRC code through unchanged.

Down - Regenerate

Up - Pass

S5-8: ESF FDL Mode - Terminates the received
data link in the CSU or passes it through unchanged.

Down - Terminate

Up - Pass

MSB

LSB

S6-1: Zero Suppression (ones density):

Down - Enable

Up - disable

S6-2: Maintenance Reset

Down - Off

Up - On

S6-3 to S6-10: The NMS address is defined
with this 8-bit binary code. The factory
default value is 1, which is S6-10 in the up
position and S6-3 through S6-9 down.

8

6

5

4

3

2

1

Dn

Up

7

9 10

1

2

4

8

16

32

64

128

DTE LBO: The output level of the
DTE interface should match the cable
length from the CSU DTE port to the
attached equipment.

S3-3 S3-4 S3-5

Distance

Dn

Dn

Dn

0 - 110 ft

Dn

Dn

Up

110-220 ft

Dn

Up

Dn

220-330 ft

Dn

Up

Up

330-440 ft

Up

Dn

Dn

440-550 ft

Up

Dn

Up

550-655 ft

Up

Up

Dn

> 655

Up

Up

Up

Square

Clock: Sets the CSU’s timing source
for data transmitted toward both the
network and DTE.

S3-6 S3-7 S3-8 Source

Dn

Dn

Dn

Normal

Up

Dn

Dn

Internal

Up

Up

Dn

Network

Up

Up

Up

DTE

TxPORT 2000 CSU Rear Panel

PO

W

E

R/

ALARM

DTE

INTE

RF

A

C

E

NE

T

W

O

RK

IN

T

E

R

F

A

C

E

E

X

TER

NAL

CL

O

C

K

SU

P

V

NM

S

IN

/OUT

8

1

6

1

6

1

6

1

6

1

8

1

1

6

NM

S

OUT

(n

ot

used

)

Optional DB-15 Connection

Pin DTE

NET

1

Data In

Data Out

2

Frame Gnd

Frame Gnd

3

Data Out

Data In

4

Frame Gnd

Frame Gnd

9

Data In

Data Out

11

Data Out

Data In

Power/Alarm Connection

Pin

Function

1

48 VDC Return

2

Signal Ground

3

-48 VDC

4

Frame Ground

5

Alarm Contact

6

Alarm Common

(o

ptional

DB-

1

5

av

aila

ble

)

Network Cable Lengths

Cable

Type

Loss

per 1000'

Max

Length

26 gauge

6.8 dB

4,400 ft

24 gauge

5.4 dB

5,500 ft

22 gauge

4.2 dB

7,100 ft

19 gauge

3.0 dB

10,000 ft

(opt

ional

DB-

1

5

av

aila

ble

)

Circuit Board View

Configuration Switch S3

Configuration Switch S6

Configuration Switch S4

Configuration Switch S5

Alarm

Relay

Switch S4

1

8

7

6

5

4

3

2

Switch S5

1

8

7

6

5

4

3

2

Switch S6

1

8

7

6

5

4

3

2

9 10

This 3-pin jumper straps the ACO alarm contact.
Move the jumper to the left for normally open
operation (closes on alarm) or to the right for
normally closed operation (opens on alarm).

NC

NO

Alarm Relay Mode

127 Jetplex Circle

Madison, Alabama 35758

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800-926-0085
205-772-3770

[email protected]

Returns/RMA

800-926-0085, ext. 2227

Technical Support

800-285-2755
205-772-3770

support@txport

T

R

A

N

S

P

O

R

T

®

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