Verilink 2100 CSU (Chassis) (CG) Configuration/Installation Manuel d'utilisateur télécharger pdf (Page 2)

For future reference, all DIP switches

are provided with upper and lower

boxes to check according to the par-

ticular user selection. Factory default

settings are shown underlined

Verilink 1051 Chassis Rear View

(V.35 version also available)

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

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

RightLeft

Keep Alive

Test Mode

Test Code

Test Pattern

Zeros

Reserved

Keep Alive

Test Mode

Test Code

Test Pattern

Zeros

7654321

All Ones

Unframed

BERT

B8ZS

Framed

Loop Back

Framed

Clear

AMI

Unframed

175

Switch S2 (front panel)

Switch S3

7654321

Dn Up

S3-1 S3-2 LBO Level

Dn 0 dB

Dn Up -7.5 dB

Up Dn -15.0 dB

Up Up -22.5 dB

Network LBO: Sets the output

signal level of transmitted data.

The telco should provide the

proper setting. If unsure of the

exact setting, set to 0 dB.

S3-3 S3-4 S3-5 Distance

Up Dn 0'-133'

Dn Dn Up 134'-266'

Up Dn Up 267'-399'

Dn Up Up 400'-533'

Up Up Up 534'-655'

S3-7 During Remote Loop

:AIS to DTE

Dn: Network data to DTE

DTE LBO: The transmit output

level is selectable according to

the cable length from the CSU

DTE port to the T1 equipment.

S3-6 Line Code

: Line code transparent

Dn: DTE AMI –> NET B8ZS

7 Keep Alive: All Ones sends a consecutive sequence of all ones back to

the network. Loopback sends any signal coming from the network

back to the network.

6 Keep Alive: Unframed

transmits the Keep Alive signal without

framing. Framed adds framing information to the Keep Alive signal.

5 Test Mode: Clear

allows network access via test jacks to run bit error

tests (affects network test only). BERT allows the CSU to send a bit

error rate test pattern after the set signal (LOOP) is sent.

4 Test Code: B8ZS

allows the CSU to be transparent to a B8ZS code

coming from the network and sets the test signals to B8ZS. AMI shows

a BPV error for each event.

3 Test Pattern: Framed

indicates that the test signals (Set, Reset, and

BERT) are framed. ‘Unframed’ indicates the test signals are unframed.

2 Zeros: 15

allows 15 successive zeros from the DTE before the Keep

Alive mode is activated. 175 allows 175 zeros before activation.

1 Reserved.

Switch S2 Description

This three-pin jumper straps the

ACO alarm contact. Position jump-

er over pins 1 and 2 for normally

open operation (closes on alarm) or

over pins 2 and 3 for normally

closed operation (opens on alarm).

Alarm Relay

The optional ACO/alarm card monitors the

alarm indicators for an alarm active or an

alarm clear condition and provides closure

contact points on the rear panel. The corre-

sponding front panel LED lights when an

alarm condition is detected on the four dif-

ferent conditions shown below.

1) Network AIS (all ones)

2) Network LOS (all zeros)

3) Network BPVs

4) DTE ones density

Optional Alarm Card

Circuit Board View

7654321

2100

Switch S3

Alarm Relay

front

panel

Factory set -

TXKX

do not change

Optional Alarm Card

Black squares indicate direction

of factory default switch settings

Reserved

950 Explorer Blvd.

Huntsville, AL 35806

800-926-0085

Product Technical Support

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

800-285-2755 or

256-327-2255

E-mail:

support@verilink.com

Online:

www.verilink.com

1 2

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Verilink 2100 CSU (Chassis) (CG) Configuration/Installation Manuel d'utilisateur Page 2

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