Verilink 200 Installation Guide

TRANSPORT

®

200 ESF CSU

Configuration Guide

TxPORT 200 Front Panel

PRODUCTIVITY SERIES 200

Part Number 45-00041
Rev 1.00

®

TRANSPORT

PWR DTE NET LOOPFAR

LOOP NORM

CSU

654321

Front Panel Description

1 POWER: This green LED lights when power is applied to the unit.
2 DTE T1 Status: This red LED lights a minimum of 0.1 sec o nd if the internal alarm circuitry detec ts any one of the following cond itions from the

DTE: one or more BPVs, FBEs, CRCs, low ones density , or a loss of signal/loss of sync condition for Š 175 bit times from th e n etwork. The LED
stays lit until the unit detects Š 4 pulses in 32 bit times.

3 Network T1 Status: This red LED lights a minimum of 0.1 second if the internal alarm circ u itry d etec ts an y of the foll owing conditions from the

incoming T1 signal: one or more BPVs, FBEs, CRCs, or a loss of signal /loss of sync condition for Š 175 bit times from the network. T he LED
stays lit until the unit detects Š 4 pulses in 32 bit times.

4 Far end T1 status: This red LED lights a minimum of 0.1 second if the internal alarm circuitry detects a yellow alarm signal from the far end ter-

minal equipment. This condition occurs if the far end terminal is out of sync with the T1 signal from the network. The format for a yellow alarm is
bit 2 set to 0 in each DS0 (D4 mode) or 8 ones/8 zeros in the facility data link (ESF mode).

5 Loop: This amber LED lights under the following conditions: the manual loop switch is placed in the ‘LOOP’ position, the unit receives an

inband loop code for > 5 seconds, or the unit receives an FDL loop message (PLB or LL B). The LED does not light if the test switch is placed in
the ‘NORM’ position or if an inband or FDL unloop code is received for >5 seconds.

6 Test Switch : This 2-position switch is used for local testing. When placed in the local loop mode (LOOP), the unit loops the signal from the cus-

tomer equipment (DTE IN) back to the customer equip ment (DTE OUT). It also loops the recei v ed signal fro m the T1 fac ility (NET IN) back to t he
T1 facility (NET OUT). When moved back to ‘NORM’, the local loopback is removed.

SPECIFICATIONS

Network Interface

Line Rate: 1.544 Mb/s (± 50 bps)
Line Framing: D4 or ESF
Line Code: AMI or B8ZS
Line Impedance: balanced 100 Ω (± 5%)
Input Signal: DS1, +1 to -30 dB (ALBO)
Output Signal: 3.0 V, ±15%, base-peak into 100 ¾
Line Build Out: 0, -7.5, -15, and -22.5 dB attenuati on
Line Protection: 1000 V lightning, fused input/output
Jitter Control: per TR62411 and T1.403
Pulse Density: per TR62411

Equipment Interface

Line Rate: 1.544 Mb/s (± 50 bps)
Line Framing: D4 or ESF
Line Code: AMI or B8ZS
Line Impedance: balanced 100 Ω (± 5%)
Input Signal: DSX1 to 655 feet
Output Signal: Selectab le DSX 1 signal level from 0 to 655 feet
Line Protection: 1000 V lightning, input/outpu t

Mechanical

Mounting: desktop or wall
Dimensions: 1.75" H, 6.8" W, 10.5" D
Weight: 2 lbs.

Industry Standards

FCC Compliance: Part 15 Subpart B, Class A
FCC Part 68 Reg: FXKUSA- 75742-DE-N
NRTL UL 1459
CSA Certified: LR62298
DOC/CSO3: 1653 5663 A
TR 54016 September 1989
TR62411
ANSI T1.403

Environmental

Operating Temp: 0° to 50° C (32° to 122°F)
Storage Temp: -20° to 85° C (-4° to 185°F)
Humidity: 9 5% m a x (non-condensing)

-20to-56VDC

MAX CURRENT, 100 MA

TxPORT 200 Rear Panel

PWR
(+) GND

PWR
(-) GND

A

B

S1 S2

Switch S2

Power Connectio n

200 CSU connecti ons are m ade on
the following terminals using 20-

AMI

NET

Mode

54016

A

DTE

AMI

NET

ESF

gauge stranded (or similar) wire:
GND (Ground)

PWR- (-48 VDC, ± 6 V, 45 mA)
PWR+ (Return)

B

NET

Mode

T1.403

B8ZS

DTE

B8ZS

NET

D4

Switch S1 Description

Network LBO:

1-2

the T1 facility. Refer to the diagram of Switch S1 for setting s .

DTE LBO:

3-5

ment. Refer to the diagram of Switch S1 for settings.

AIS Enable:

6

DTE during a remote loop (A

Ones Density:

8

zeros from the D TE. The ‘Disabled’ mode ignores density control and allows up to 175 ze ros to pass
towards the network before a loss of signal is declared.

These 2 positions set t he network line build ou t signal level of data tra nsmitted towards

These 3 positions set the DTE line build out transmit signal value towards the customer equip-

Options the unit to ei ther ‘generate ’ unframed all on es (an Alarm Indica tion Signal) to th e

) or to ‘pass’ the received network signal to the DTE on a remote loop (B).

Per AT& T 62 411, the ‘Enabled

’ mode allows ones density insertion after 15 successive

Switch S2 Description

ESF Mode:

1

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

Network Code:

2

DTE Code:

3

Network Framing:

4

DTE Framing:

5

PRM

7

sync from the DTE, an unfram ed all ones signal is gene rated to th e T1 facility. If Switch S2-1 i s set for
T1.403 operation, the unit interrupts the AIS signal with a PRM once a second.

54016 mode - unit responds onl y to 54016 CSU messages. T1.40 3 mode - unit respond s to

Sets the network line codin g, including conversion.

Sets the DTE line coding, inc lu ding conv er sion.

In the ESF

Sets the CSU to the framing of the DTE line.

: Enables /disa bles sending a perf ormance report m essage during a n AIS. If the unit de tects loss of

mode, the unit responds to T1 .403 or 54016 messages.

ESF

DTE

Spare

54321 6 7

D4

DTE

Spare

-22.5

NET

81

76543218654321 7

DTE

81

RJ48C Interfaces

PRM

Enable

Pin NET DTE

1 Data In (R1) Data Out (R)
2 Data In (T1) Data Out (T)

3/6 Not Used Not Used

4 Data Out (R) Data In (R1)

PRM

Disable

0

-7.5

-15

A

B

0 - 133 FT.
134 - 266 FT.
267 - 399 FT.
400 - 533 FT.
534 - 655 FT.

A
A
B
B B

5 Data Out (T) Data In (T1)

7/8 Chassis Gnd Chassis Gnd

A
B
A

Network

LBO

DTE LBO

A
B
A
B
A

Switch S1

54321 6 8

A

A

B

B
B

B

A

B

A

B

Loop

Loop

AIS

Network Data

7

NOTE: The ‘A’ position is the factory 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.

15 Zeros

Not used

Ones Density

Not used

175 Zeros

Ones Density

Loopbacks

The unit can be looped remotely by generating towards it a standard CSU line loopback code (00001
repeating for Š 5 seconds, framed or unframed). Once looped, the received signal from the T1 facility
(NET IN) is regenerated and transmitted back to the T1 facility (NET OUT). The unit is unlooped
remotely by generating towards it a standard CSU line unloop code (001 repeating for Š 5 seconds,
framed or unframed).

DIP switch S1-6 configures the unit to either generate an u nframed all o nes (AIS) sign al to t he DTE or
to pass the received da ta from the netw ork to the DTE. Th e unit respond s to the fac ility da ta link (FDL)
loop (PLB, 0000111011111111) and unloop command messages (0011100011111111).

Local Loopback

Remote Loopback

AIS

DTE

NET

DTE

NET

®

TRANSPORT

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.)
800-285-2755 or

205-772-3770, ext. 255

After Hours Hot Line:

205-551-7538