Telect BCS II User Manual

®

®

BCS II SIMPLEX REPEATER

USER MANUAL

117209-1 A0

710-3201-0002 BCS II Simplex Repeater User Manual
Document Number 117209A0
Copyright© Telect, Inc., 2001, All Rights Reserved.

Telect® and Connecting the Future® are registered trademarks of Telect, Inc.,
1730 N. Madson St., Liberty Lake, Washington 99019

Technical Support:

By e-mail: [email protected]
By phone: [phone] or 509-921-6161

Note:

Telect assumes no liability from the application or use of these products. Neither
does Telect convey any license under its patent rights nor the patent rights of oth­ers. This document and the products described herein are subject to change with­out notice.

FCC Compliance:

This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment
is operated in a commercial environment.

This equipment generates, uses, and can radiate radio frequency energy, and if
not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference, in which case the user will
be required to correct the interference at his own expense.

ii Telect, Inc. 117209A0

Contents

1 Descriptions

BCS II Simplex Repeater .............................................. 1-1

Features .................................................................. 1-1

Specifications ................................................................ 1-1

Electrical................................................................. 1-1

Power...................................................................... 1-1

DS3 Input ............................................................... 1-2

DS3 Output............................................................. 1-2

E3 Input .................................................................. 1-2

E3 Output ............................................................... 1-2

STS-1 Input ............................................................ 1-3

STS-1 Output.......................................................... 1-3

Alarms .................................................................... 1-3

Environmental ........................................................ 1-4

Dimensions............................................................. 1-4

Schematic ............................................................... 1-5

System-Level Application...................................... 1-6

2 Installation

Installation Considerations ............................................ 2-1

Location and Space ................................................ 2-2

Tools and Equipment ............................................. 2-2

Power...................................................................... 2-2

Technical Support .................................................. 2-2

Inspection ...................................................................... 2-2

Installing the Repeater................................................... 2-3

117209-1 A0 iii

3 Operation

Monitoring .....................................................................3-1

Loopbacks ......................................................................3-1

Patching .........................................................................3-2

4 Service

Owner Maintenance.......................................................4-1

Replacing the Tracer Lamp LED............................ 4-1

In Case Of Difficulty .....................................................4-2

Technical Support...................................................4-2

In-Warranty Service.......................................................4-2

Out-Of-Warranty Service ..............................................4-3

Repacking For Shipment ...............................................4-3

iv Telect, Inc. 117209-1 A0

1 Descriptions

BCS II SIMPLEX REPEATER

The Broadband Connectivity System II (BCS II) Simplex Repeater (part
# 710-3201-0002) regenerates DS3, E3, and STS-1 signals to allow in­creased separation of network elements and provides full DSX function­ality. The module installs in any vertical BCS II chassis or in the Vector
chassis and is always installed in pairs.

Features

• Full signal regeneration to equal level point on each circuit

• Mini-WECO monitor and I/O jacks

• Alarm and tracer lamp LEDs

• Full DSX functionality, including patching, monitoring and loop-

backs

SPECIFICATIONS

Electrical

Monitor Level: 20 dB + 1.5 dB below signal level

Return Loss: <

Impedance: 75Ω (+/- 5%)

-24 dB at DS3 signal rate

Power

Battery Input: A and B redundant, -42 to -58 Vdc

Input Current: 35 mA nominal @ 48V

Internal Fuse: 1/4 amp, not field replaceable

117209-1 A0 1-1

1 Descriptions BCS II Simplex Repeater User Manual

DS3 Input

Data Rate: 44.736 Mb/s + 100 ppm

Data Format: Bipolar with B3ZS coding

Jitter Tolerance: Meets requirements of Telcordia GR-499-CORE, Is-

sue 1, December, 1995

Equalization: Selectable normal or high sensitivity receive equaliza­tion, based on receive cable length

DS3 Output

Data Rate: Same as input signal, transmit clock is recovered from in­put signal. Under AOS condition (no valid input): 44.736 Mb/s +
ppm

Data Format: Bipolar with B3ZS coding, input bipolar violations are
transparent to output

Pulse Shape: Complies with Telcordia GR-499-CORE, Issue 1, De­cember, 1995. Pulse plate complies with ANSI T1.404 pulse template

LBO: Selectable DSX Level or DS3 High Output

100

E3 Input

Data Rate: 34.368 Mb/s + 100 ppm

Data Format: AMI with HDB3 coding

Jitter Tolerance: Meets ITU-T G.832, 1993 requirements

Equalization: Selectable normal or high sensitivity receive equaliza-

tion, based on receive cable length

E3 Output

Data Rate: Same as input signal, transmit clock is recovered from in­put signal

Data Format: AMI with HDB3 coding

Pulse Shape: Complies with ITU-T G.703

LBO: Fixed transmit level

1-2 Telect, Inc. 117209-1 A0

BCS II Simplex Repeater User Manual 1 Descriptions

STS-1 Input

Data Rate: 51.84 Mb/s + 100 ppm

Data Format: Bipolar with B3ZS coding

Jitter Tolerance: Meets Telcordia GR-499-CORE, Issue 1, December,

1995 requirements

Equalization: Selectable normal or high sensitivity receive equaliza­tion, based on receive cable length

STS-1 Output

Data Rate: Same as input signal, transmit clock is recovered from in­put signal

Data Format: Bipolar with B3ZS coding

Pulse Shape: Complies with Telcordia GR-CORE-253

LBO: Selectable DSX Level or STS-1 High Output

Alarms

Relay contacts rated for 2 amps maximum.

117209-1 A0

ALARM OUTPUTS, LEDs CONDITION

RCV LED GREEN / XMIT
LED GREEN / ALARM CON­TACTS OPEN

RCV LED RED / XMIT LED
AMBER / MAJ ALARM CON­TACT CLOSED

XMIT LED RED / MAJ
ALARM CONTACT CLOSED

ALL FRONT PANEL LEDS
OFF / PWR FAIL ALARM
CONTACT CLOSED

NORMAL: VALID INPUT SIGNAL

LOSS OF VALID INPUT SIGNAL /
ALL ONES SIGNAL AUTOMATI­CALLY TRANSMITTED

TRANSMITTER FAILURE

FAILURE OF INTERNAL POWER
CONVERTER OR LOSS OF
BOTH BATTERY INPUTS

1-3

1 Descriptions BCS II Simplex Repeater User Manual

65 c

Environmental

Humidity: 95% relative humidity, noncondensing

Temperature: Operational from 0-50°C

Heat Dissipation: 5.7 BTUs/hour

Dimensions

6.84 in.

17.37 cm

3.90 in.

9.91 cm

0.65 in.

1.

1-4 Telect, Inc. 117209-1 A0

m

BCS II Simplex Repeater User Manual 1 Descriptions

Schematic

117209-1 A0

1-5

1 Descriptions BCS II Simplex Repeater User Manual

System-Level Application

The simplex repeater regenerates DS3, E3, and STS-1 signals to equal
level point over a distance of up to 900 ft (using RG-59/734 cable). Tw o

repeaters are required to regenerate both the send and receive sig­nals and complete the cross-connect.

The repeater regenerates the signal that appears on the IX port and trans­mits it out the I port for a length dependent upon the type of cable used.
See the installation section to set the module jumpers based on cable
length.

The OX and O ports are passive; therefore, a second repeater is required
to regenerate and transmit the signal in the other direction. Each net­work element can be located up to 900 ft from the far end repeater’s IX
port.

Up to 900 ft (using RG-59/734)

NE 1

RX

TX

Simplex

Repeater

I

O

IX

OX

Simplex

Repeater

IX

OX

NE 2

I

O

RX

TX

Up to 900 ft (using RG-59/734)

1-6 Telect, Inc. 117209-1 A0

2 Installation

INSTALLATION CONSIDERATIONS

CAUTION

!

CAUTION! This product must be installed and maintained
only by qualified technicians.

VORSICHT! Nur von qualifizierten Technikern installiert wer­den und instand gehalten werden.

PRECAUCIÓN! Ser instalado y ser mantenido solamente por
los técnicos autorizados.

ATTENTION! Ce produit doit être installé et entretenu
uniquement par des techniciens qualifiés.

ALERT

!

ALERT! These instructions presume you have verified that
the Telect equipment being installed is compatible with the
rest of the system, including power, ground, circuit protec­tion, signal characteristics, equipment from other vendors,
and local codes or ordinances.

ALERT

!

ALERT! This repeater module contains static-sen­sitive components. To prevent equipment damage,
wear a properly connected grounding strap while
handling the module and store it in its original anti­static bag when not in use.

117209-1 A0 2-1

2 Installation BCS II Simplex Repeater User Manual

Location and Space

The BCS II Simplex Repeater module occupies one slot in any vertical
BCS II chassis or in the Vector chassis. Do not install more than five re­peater modules in a BCS II chassis. The Vector Chassis can be fully
populated with repeaters. You must install two repeaters to complete
the cross-connect, one repeater for each network element.

Tools and Equipment

No special tools or equipment are required. Wear a grounding strap dur­ing installation.

Power

–42 Vdc to –58 Vdc power reaches the module through the backplane
connector on the chassis. Power to the backplane connector block is de­livered from the power distribution panel using 16–22 AWG wire. See
the chassis user manual for additional information on power transmis­sion. Because the repeater is an active product, Telect recommends us­ing a dual feed power source.

Technical Support (USA)

By e-mail: [email protected]
By phone: [phone] or 509-921-6161

INSPECTION

Compare the contents of the shipping container with the packing list.
Call Telect if you are missing anything.

NOTE

Telect is not liable for shipping damage.

If the shipping container is damaged, keep it for the carrier’s inspec­tion. Notify the carrier and call Telect’s Customer Service Department:

1-800-551-4567 or 1-509-926-6000

Keep the container until you have checked equipment operation. If you
experience any kind of problem, call Telect’s Customer Service Depart­ment. Use the original, undamaged container if you are instructed to re­turn the product to Telect.

2-2 Telect, Inc. 117209-1 A0

BCS II Simplex Repeater User Manual 2 Installation

INSTALLING THE REPEATER

1. Identify the two network elements you wish to cross-connect.

2. Plan placement of the two repeater modules in relay racks, ensur-

ing:

◊ the distance between the network element and the repeater is

correct for the system, cables in use and office procedures.
This can be up to 450 feet.

◊ the two repeater modules will not be more than 900 feet apart.

3. While wearing a grounding strap, remove the repeaters from their

anti-static bags, touching the module edges only.

4. Set the jumpers on each module for the appropriate data rate, as

shown below (factory setting is T3).

5. Set the jumpers for the transmit and receive distances, as shown

below (factory settings are Low and Short). See the tables on the
next page to determine the settings appropriate for the type of ca­ble being used.

1324

Transmit and Receive settings are for distance from repeater to network
element (or next repeater) only.

117209-1 A0

Jumper Settings

Data Rate

E3

T3 (DS3)

(Default)
1324

Transmit

High

Low

(Default)

2

2

13

13

Receive

Long

Short

(Default)

132

132

STS-1

132

4

NOTE

2-3

2 Installation BCS II Simplex Repeater User Manual

Transmit Settings by Cable Type

Cable

720

728

734

735

RG-59

Repeater to NE

distance (feet)

0-124 Low

124-255 High

0-212 Low

212-425 High

0-224 Low

224-450 High

0-112 Low

112-225 High

0-224 Low

224-450 High

Receive Settings by Cable Type

Cable

720

728

734

735

RG-59

Cross-connect

distance (feet)

0-124 Short

124-255 Long

0-212 Short

212-425 Long

0-224 Short

224-450 Long

0-112 Short

112-225 Long

0-224 Short

224-450 Long

Setting

Setting

2-4 Telect, Inc. 117209-1 A0

BCS II Simplex Repeater User Manual 2 Installation

6. Slide each module into the appropriate chassis slot and press it

firmly into the backplane connector.

7. Secure each module with the included screw.

8. Follow the diagram below to connect two network elements.

Simplex Repeater

LBO Settings

Distance Distance

AB

NE

RX

TX

SIMPLEX

REPEATER

710-3201-0002

Each network element can be located up to 900ft. from the far end repeaters IX port.

Repeater
to NE
distance
(feet)

CABLE

0-124 A or C SHORT 0-124 B SHORT

720

124-255 A or C LONG 124-255 B LONG
0-212 A or C SHORT 0-212 B SHORT

728

212-425 A or C LONG 212-425 B LONG
0-224 A or C SHORT 0-224 B SHORT

734

224-450 A or C LONG 224-450 B LONG
0-112 A or C SHORT 0-112 B SHORT

735

112-225 A or C LONG 112-225 B LONG
0-224 A or C SHORT 0-224 B SHORT

RG-59

224-450 A or C LONG 224-450 B LONG

I

I

IX

O

O

OX

FIGURE
Distan ce

Distance

(using RG-59/734)

Transmit
LBO
Setting

I

I

IX

O

O

OX

SIMPLEX

REPEATER

710-3201-0002

Repeater
to
Repeater
distance

FIGURE

(feet)

Distan ce

C

Rece ive
LBO
Setting

NE

RX

TX

9. Install backplane tracer lamp wire between the two repeaters and

10. Install designation strips and label them using office standards.

11. Test circuits per office standards.

117209-1 A0

verify both tracer lamp LEDs light.

2-5

3 Operation

MONITORING

You can perform non-intrusive signal monitoring by connecting your
test equipment to the front monitor jack (labeled M).

Monitor Jack

Tes t

Equipment

LOOPBACKS

To temporarily loop the repeater’s OUT port to its IN port, fully insert a
mini-WECO looping plug into the I/O jacks.

117209-1 A0 3-1

3 Operation BCS II Simplex Repeater User Manual

PATCHING

You can establish temporary patches using the I/O jacks on the front
faceplate, as shown below. This operation is intrusive and will interrupt
the cross-connect, routing the signals through the patch cords.

OX

IX

O

Network
Element

Repeater Repeater

I

Repeater

or DSX

Network
Element

OX
IX
O
I

Network
Element

3-2 Telect, Inc. 117209-1 A0

4 Service

CAUTION

!

CAUTION! This product must be installed and maintained
only by qualified technicians.

VORSICHT! Nur von qualifizierten Technikern installiert wer­den und instand gehalten werden.

PRECAUCIÓN! Ser instalado y ser mantenido solamente por
los técnicos autorizados.

ATTENTION! Ce produit doit être installé et entretenu
uniquement par des techniciens qualifiés.

OWNER MAINTENANCE

Telect’s BCS II Simplex Repeater module does not need preventive
maintenance. The only part you can replace is the tracer lamp LED.

Replacing the Tracer Lamp LED

1. Pull the defective LED straight out with your fingers.

2. Align the replacement LED with the LED socket in the faceplate.

Notice that the socket is keyed, and the LED enters only one way.

ALERT

ALERT! Do not bend the LED’s two metal leads.

3. Gently insert the LED into the socket, as shown on the next page.

If you encounter resistance, do not force the LED into position.
Move it until it slides easily into the jack module.

117209-1 A0 4-1

4 Service BCS II Simplex Repeater User Manual

Flat surface of LED to
flat surface of socket

Leads

LED

4. When the LED snaps into place, the installation is complete.

5. To test the new LED, insert a plug into the “M” (monitor) jack.

The LED flashes for about 30 seconds, then lights steadily.

IN CASE OF DIFFICULTY

If problems occur after initial installation, check all cable connections
and the installation instructions in Chapter 2.

Technical Support

By e-mail: [email protected]
By phone: [phone] or 509-921-6161

IN-WARRANTY SERVICE

Contact your Telect equipment distributor, or call a Telect Customer
Service Representative:

1-800-551-4567
1-509-926-6000

Telect will repair or replace defective products within the limits of the
warranty. See “Repacking for Shipment” in this section.

NOTE

Call a Customer Service Representative for a Return Material Authori­zation (RMA) before returning any equipment.

4-2 Telect, Inc. 117209-1 A0

BCS II Simplex Repeater User Manual 4 Service

OUT-OF-WARRANTY SERVICE

The procedure for out-of-warranty service is the same as for in-warranty
service, except that Telect charges a processing fee, and you must sub­mit a Purchase Order along with a Return Material Authorization
(RMA) before returning equipment. Call a Customer Service Represen­tative for help getting these forms.

The processing fee guarantees a repair estimate and is credited against
actual material and labor costs.

REPACKING FOR SHIPMENT

1. Tag the equipment with owner’s name, address, and telephone

number, together with a detailed description of the problem.

2. Use the original shipping container if possible. If you do not have

it, package the equipment in a way to prevent shipping damage.
Include the RMA inside the container and legibly print the RMA
number on the outside of the package, near the shipping address.

3. Insure the package.

NOTE

117209-1 A0

Telect is not liable for shipping damage.

4-3