®
®
BCS II SIMPLEX REPEATER
USER MANUAL
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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
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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
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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 in-
creased separation of network elements and provides full DSX function-
ality. 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: < -24 dB at DS3 signal rate
Impedance: 75Ω (+/- 5%)
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
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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 equaliza-
tion, based on receive cable length
DS3 Output
Data Rate: Same as input signal, transmit clock is recovered from in-
put signal. Under AOS condition (no valid input): 44.736 Mb/s + 100
ppm
Data Format: Bipolar with B3ZS coding, input bipolar violations are
transparent to output
Pulse Shape: Complies with Telcordia GR-499-CORE, Issue 1, De-
cember, 1995. Pulse plate complies with ANSI T1.404 pulse template
LBO: Selectable DSX Level or DS3 High Output
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 in-
put signal
Data Format: AMI with HDB3 coding
Pulse Shape: Complies with ITU-T G.703
LBO: Fixed transmit level
1-2
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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 equaliza-
tion, based on receive cable length
STS-1 Output
Data Rate: Same as input signal, transmit clock is recovered from in-
put 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.
ALARM OUTPUTS, LEDs
CONDITION
RCV LED GREEN / XMIT
LED GREEN / ALARM CON-
TACTS OPEN
NORMAL: VALID INPUT SIGNAL
RCV LED RED / XMIT LED
AMBER / MAJ ALARM CON-
TACT CLOSED
LOSS OF VALID INPUT SIGNAL /
ALL ONES SIGNAL AUTOMATI-
CALLY TRANSMITTED
XMIT LED RED / MAJ
TRANSMITTER FAILURE
ALARM CONTACT CLOSED
ALL FRONT PANEL LEDS
OFF / PWR FAIL ALARM
CONTACT CLOSED
FAILURE OF INTERNAL POWER
CONVERTER OR LOSS OF
BOTH BATTERY INPUTS
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1-3
1 Descriptions
BCS II Simplex Repeater User Manual
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.
1.65 cm
1-4
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BCS II Simplex Repeater User Manual
1 Descriptions
Schematic
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1-5
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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). Two
repeaters are required to regenerate both the send and receive sig-
nals and complete the cross-connect.
The repeater regenerates the signal that appears on the IX port and trans-
mits 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 net-
work element can be located up to 900 ft from the far end repeater’s IX
port.
Up to 900 ft (using RG-59/734)
Simplex
Repeater
Simplex
Repeater
NE 1
NE 2
I
IX
IX
I
RX
TX
RX
TX
OX
O
OX
O
Up to 900 ft (using RG-59/734)
1-6
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2
Installation
INSTALLATION CONSIDERATIONS
CAUTION
!
CAUTION! This product must be installed and maintained
only by qualified technicians.
VORSICHT! Nur von qualifizierten Technikern installiert wer-
den 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 protec-
tion, signal characteristics, equipment from other vendors,
and local codes or ordinances.
ALERT
!
ALERT! This repeater module contains static-sen-
sitive components. To prevent equipment damage,
wear a properly connected grounding strap while
handling the module and store it in its original anti-
static bag when not in use.
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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 re-
peater 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 dur-
ing 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 de-
livered from the power distribution panel using 16–22 AWG wire. See
the chassis user manual for additional information on power transmis-
sion. Because the repeater is an active product, Telect recommends us-
ing a dual feed power source.
Technical Support (USA)
By e-mail: [email protected]
By phone: 888-821-4856 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 inspec-
tion. 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 Depart-
ment. Use the original, undamaged container if you are instructed to re-
turn the product to Telect.
2-2
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BCS II Simplex Repeater User Manual
2 Installation
INSTALLING THE REPEATER
1.
2.
Identify the two network elements you wish to cross-connect.
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.
4.
5.
While wearing a grounding strap, remove the repeaters from their
anti-static bags, touching the module edges only.
Set the jumpers on each module for the appropriate data rate, as
shown below (factory setting is T3).
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 ca-
ble being used.
Jumper Settings
Data Rate
STS-1
1 2 3 4
E3
T3 (DS3)
(Default)
1 2 3 4
1 2 3 4
Transmit
High
Low
(Default)
1 2 3
1 2 3
Receive
Long Short
(Default)
1 2 3
1 2 3
NOTE
Transmit and Receive settings are for distance from repeater to network
element (or next repeater) only.
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2 Installation
BCS II Simplex Repeater User Manual
Transmit Settings by Cable Type
Repeater to NE
distance (feet)
Cable
Setting
0-124
124-255
0-212
Low
High
Low
High
Low
High
Low
High
Low
High
720
728
212-425
0-224
734
224-450
0-112
735
112-225
0-224
RG-59
224-450
Receive Settings by Cable Type
Cross-connect
Cable
Setting
distance (feet)
0-124
Short
Long
Short
Long
Short
Long
Short
Long
Short
Long
720
124-255
0-212
728
212-425
0-224
734
224-450
0-112
735
112-225
0-224
RG-59
224-450
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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.
8.
Secure each module with the included screw.
Follow the diagram below to connect two network elements.
Simplex Repeater
LBO Settings
Distance
Distance
Distance
A
B
C
I
I
NE
NE
IX
IX
RX
RX
O
O
TX
TX
OX
OX
SIMPLEX
REPEATER
710-3201-0002
SIMPLEX
REPEATER
710-3201-0002
Each network element can be located up to 900ft. from the far end repeaters IX port.
(using RG-59/734)
Repeater
Repeater
to NE
to
Transmit Repeater
Receive
distance FIGURE LBO
distance FIGURE LBO
Distance Setting (feet) Distance Setting
A or C SHORT 0-124
(feet)
CABLE
720
0-124
124-255
0-212
212-425
0-224
224-450
0-112
112-225
0-224
224-450
B
B
B
B
B
B
B
B
B
B
SHORT
LONG
A or C LONG
124-255
A or C SHORT 0-212
SHORT
LONG
728
734
A or C LONG
212-425
A or C SHORT 0-224
SHORT
LONG
A or C LONG
224-450
A or C SHORT 0-112
SHORT
LONG
735
A or C LONG
112-225
A or C SHORT 0-224
SHORT
LONG
RG-59
A or C LONG
224-450
9.
Install backplane tracer lamp wire between the two repeaters and
verify both tracer lamp LEDs light.
10. Install designation strips and label them using office standards.
11. Test circuits per office standards.
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3
Operation
MONITORING
You can perform non-intrusive signal monitoring by connecting your
test equipment to the front monitor jack (labeled M).
Monitor Jack
Test
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.
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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
OX
IX
O
I
Network
Element
Repeater
Network
Element
Repeater
or DSX
3-2
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4
Service
CAUTION
!
CAUTION! This product must be installed and maintained
only by qualified technicians.
VORSICHT! Nur von qualifizierten Technikern installiert wer-
den 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.
2.
Pull the defective LED straight out with your fingers.
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.
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4 Service
BCS II Simplex Repeater User Manual
Flat surface of LED to
flat surface of socket
Leads
LED
4.
5.
When the LED snaps into place, the installation is complete.
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: 888-821-4856 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 Authori-
zation (RMA) before returning any equipment.
4-2
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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 sub-
mit a Purchase Order along with a Return Material Authorization
(RMA) before returning equipment. Call a Customer Service Represen-
tative 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
Telect is not liable for shipping damage.
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