Verilink 2010 Chassis (CG) Configuration/Installation Guide Manual do Utilizador descarregar pdf (Página 2)

Switch S2 (front panel)

PRM

7654321

NET LBO

DTE ALBO

PRM

AIS AIS

DTE ALBO

NET LBO

DTE ALBO

NET LBO

DTE

NET

AIS

Remote Loopback

Loopbacks

DTE

NET

Local Loopback

The 2010 can be looped remotely by generating

towards it a standard CSU line loopback code

(00001 repeating for Š 5 seconds, framed or un-

framed). Once looped, the received signal from

the T1 facility (NET IN) is regenerated and

transmitted back to the T1 facility (NET OUT).

The 2010 can be unlooped remotely by generat-

ing towards it a standard CSU line unloop code

(001 repeating for Š 5 seconds, framed or un-

framed). The 2010 responds to FDL loop and

unloop command messages.

Enable

Generate

Disable

Pass Data

TxPORT 1051-2 Chassis Rear View

T1 DTE

123456789101112

( B )

NMS

( B )

NMS

OUT

High Speed DTE

11 10 9 8 7 6 5 4 3 2 1

T1 NET

TB1 TB2

ENET

( A )

NMS

( A )

NMS

OUT

123456789101112

TB1 TB2

Pin T1 DTE T1 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 Signal Gnd Signal Gnd

Pin NMS In 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

Chassis Connections

TxPORT Customer Service

127 Jetplex Circle

Madison, Alabama 35758

Customer Service Returns:

800-926-0085, ext. 227

Product Technical Support

(8 a.m. to 5 p.m. Central)

800-285-2755 or

205-772-3770, ext. 255

Emergency After Hours:

800-285-2755

Manager: 205-603-2194

TRANSPORT

Density

DTE framing

NET framing

DTE code

NET code

Op Mode

Density

DTE framing

NET framing

DTE code

NET code

Op Mode

7654321

Switch S1 (front panel)

Disabled

B8ZS

T1.403

Enabled

ESF

AMI

54016

Not Used

ESF Mode:

54016 - the unit responds only to 54016 CSU messages. T1.403 mode - the unit responds to

ANSI loop/unloop commands and generates a PRM every second, but will not respond to 54016 messages.

Network Line Coding:

Sets the NET line coding (including conversion).

DTE Line Coding:

Sets DTE line coding (including conversion)

Network Line Framing:

Sets the CSU to the framing of the network line. In the ESF

mode, the unit

responds to all T1.403 or 54016 messages.

DTE Line Framing:

Sets the CSU to the framing of the DTE line.

Density

(zero suppression mode): Enabled allows ones density control after 15 successive zeros from the

DTE (per TR62411). Disabled ignores density control and allows 175 zeros to pass towards the network.

Switch S1

1-2

Network LBO:

Sets the network signal level of data transmitted towards the T1 facility. Refer to the table.

3-5

DTE ALBO:

Sets the DTE line build out transmit value towards the customer equipment. The value

should match the cable length from the CSU DTE port to the attached equipment. Refer to the table above.

AIS Enable:

Enables sending an alarm indication signal during an active payload loopback. A

- generate

AIS to DTE during remote loop; B - Pass received network signal to DTE.

PRM Enable:

Enables sending a PRM during an AIS. If the unit detects loss of sync from the DTE, an

unframed all ones signal is generated to the T1 facility. If Switch S2-6 is set to generate AIS and Switch

S1-1 is set for T1.403 operation, the unit interrupts the AIS signal with a PRM once a second.

Switch S2

S2-1 S2-2 Attenuation

A 0 dB

A B -7.5 dB

B A -15.0 dB

B B -22.5 dB

S2-3 S2-4 S2-5 Distance

A A 0 -133

B B B 134-266

A B B 267-399

B A B 400-533

A A B 534-655

Network LBO

DTE ALBO

NOTE: The ‘A’ position is the fac-

tory default for all switch settings.

If a particular user configuration

requires that a switch be placed in

the ‘B’ direction, then mark this

sheet for future reference.

1 2

2010 ESF CSU 1
TRANSPORT 2

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