Cisco ONS 15454 EC1-12, ONS 15454 DS1-14, ONS 15454 DS3-12, ONS 15454 DS1N-14, ONS 15454 DS3N-12 Reference Manual
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CHAPTER
3
Electrical Cards
This chapter describes Cisco ONS 15454 electrical card features and functions. For installation and card
turn-up procedures, refer to the Cisco ONS 15454 Procedure Guide. For information on the electrical
interface assemblies (EIAs), see the “Electrical Interface Assemblies” section on page 15.
Chapter topics include:
• Electrical Card Overview, page 1
• Electrical Card Warnings, page 2
• EC1-12 Card, page 2
• DS1-14 and DS1N-14 Cards, page 5
• DS3-12 and DS3N-12 Cards, page 10
• DS3-12E and DS3N-12E Cards, page 14
• DS3XM-6 Card, page 18
3.1 Electrical Card Overview
For software and cross-connect card compatib ility infor mation, see the “Card Comp atibility” sectio n on
page 2.
Each card is marked with a symbol that corresponds to a slot (or slots) on the ONS 15454 shelf assembly .
The cards are then installed into slots displaying the same symbols. See the “Cards and Slots” section
on page 42 for a list of slots and symbols.
Table 3-1 lists the Cisco ONS 15454 electrical cards.
Table 3-1 Cisco ONS 15454 Electrical Cards
Electrical Card Name Description For additional information
EC1-12
DS1-14
The EC1-12 card provides 12 Telcordia-compliant,
GR-253 STS-1 electrical ports per card. Each port
operates at 51.840 Mbps over a singl e 750-ohm 728A
or equivalent coaxial span.
The DS1-14 card provides 14 Telcordia-compliant
GR-499 DS-1 ports. Each port operates at 1.544
Mbps ove r a 10 0 −ohm twisted-pair copper cable.
See the “EC1-12 Card” section on page 2.
See the “DS1-14 and DS1N-14 Cards”
section on page 5.
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Electrical Card Warnings
Table 3-1 Cisco ONS 15454 Electrical Cards (continued)
Electrical Card Name Description For additional information
DS1N-14
DS3-12
DS3N-12
DS3-12E
DS3N-12E
DS3XM-6 (Transmux)
The DS1N-14 card supports the same features as the
DS1-14 card but can also provide 1:N (N<
protection.
The DS3-12 card provides 12 Telcordia-compliant
GR-499 DS-3 ports per card. Each port operates at
44.736 Mbps over a single 75-ohm 728A or
equivalent coaxial span.
The DS3N-12 supports the same features as the
DS3-12 but can also provide 1:N (N<
The DS3-12E card provides 12 Telcordia-compliant
ports per card. Each port operates at 44.736 Mbps
over a single 75-ohm 728A or equivalent coaxial
span. The DS3-12E card provides enhanced
performance monitoring functions.
The DS3N-12E card supports the same features as
the DS3-12E but can also provide 1:N (N<
protection.
The DS3XM-6 card provides six
Telcordia-compliant GR-499-CORE M13
multiplexing functions. The DS3XM-6 converts six
framed DS-3 network connections to 28x6 or 168
VT1.5s.
5)
5) protection.
5)
See the “DS1-14 and DS1N-14 Cards”
section on page 5.
See the “DS3-12 and DS3N-12 Cards”
section on page 10.
See the “DS3-12 and DS3N-12 Cards”
section on page 10.
See the “DS3-12E and DS3N-12E Cards”
section on page 14.
See the “DS3-12E and DS3N-12E Cards”
section on page 14.
See the “DS3XM-6 Card” section on
page 18.
Chapter 3 Electrical Cards
3.2 Electrical Card Warnings
Warning
Caution When working with cards, wear the supplied ESD wristband to avoid ESD d amage to the card. Plug the
Do not directly touch the backplane with your hand or any metal tool, or you could shock yourself.
wristband cable into the ESD jack located on the lower-right outside edge of the shelf assembly.
3.3 EC1-12 Card
The EC1-12 card provides 12 Telcordia-compliant, GR-253 STS-1 electrical ports per card. Each port
operates at 51.840 Mbps over a single 75 ohm 728A or equivalent coaxial span.
STS path selection for UNEQ-P, AIS-P, and bit error rate (BER) thresholds is done on the SONET ring
interfaces (optical cards) in conjunction with the STS cross-connect. The EC1-12 terminates but does
not select the 12 working STS-1 signals from the backplane. The EC1-12 maps each of the 12 received
EC1 signals into 12 STS-1s with visibility into the SONET path overhead.
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An EC1-12 card can be 1:1 protected with another EC1-12 car d but cannot protect more th an one EC1-12
card. You must install the EC1-12 in an even-numbered slot to serve as a working card and in an
odd-numbered slot to serve as a protect card.
3.3.1 EC1-12 Slots and Connectors
You can install the EC1-12 card in Slots 1 to 6 or 12 to 17 (multispeed or high-speed card slot) on the
ONS 15454. Each EC1-12 interface features DSX-level (digital signal cross-connect frame) outputs
supporting distances up to 450 ft (137 m) depending on facility conditions. See “Electrical Card
Protection and the Backplane” section on page 4 for more information about electrical card slot
protection and restrictions.
3.3.2 EC1-12 Faceplate and Block Diagram
Figure 3-1 shows the EC1-12 faceplate and a block diagram of the card.
Figure 3-1 EC1-12 Faceplate and Block Diagram
EC1-12 Card
FAIL
ACT/STBY
SF
EC1
12
main STS1
B
a
c
k
p
l
a
n
e
protect STS1
Line
Interface
Unit
STS-1
Framer
x12
STS-12/
12xSTS-1
Mux/Demux
ASIC
BTC
ASIC
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EC1-12 Card
3.3.3 EC1-12 Hosted by XC, XCVT, or XC10G
All 12 STS-1 payloads from an EC1-12 card are carried to the XC, XCVT, or XC10G card where the
payload is further aggregated for efficient transport. XC and XCVT cards can host a maximum of
288 bidirectional STS-1s. XC10G c an host up to 1152 bidi rectional STS-1s.
3.3.4 EC1-12 Card-Level Indicators
Table 3-2 describes the three card-level LEDs on the EC1-12 card.
Table 3-2 EC1-12 Card-Level Indicators
Card-Level Indicators Description
Red FAIL LED
Green ACT LED
Amber SF LED
The red FAIL LED signifies that the EC1-12 card’s processor is not ready.
Replace the unit if the FAIL LED persists.
The green ACT LED indicates that the EC1 -12 card is operatio nal and ready
to carry traffic.
The amber SF LED indicates a signal failure or condition such as loss of
signal (LOS), loss of frame (LOF) or high bit error rate (BER) on one or
more of the card’s ports.
Chapter 3 Electrical Cards
3.3.5 EC1-12 Port-Level Indicators
You can obtain the status of the EC1-12 card ports using the LCD screen on the ONS 154 54 fan tray. Use
the LCD to view the status of any port or card slot; the screen displays the number and sev erity of alarms
for a given port or slot.
3.3.6 EC1-12 Card Specifications
Note The I-Temp symbol is displayed on the faceplate of an I-Temp compliant card. A card without this
symbol is C-Temp compliant.
The EC1-12 card specifications are listed below:
• Input:
–
Bit rate: 51.84 Mbps +/– 20 ppm
–
Frame format: SONET
–
Line code: B3ZS
–
Termination: Unbalanced coaxial cable
–
Input impedance: 75 ohms +/– 5%
–
Cable loss: Max 450 ft 734A, RG-59, 728A/Max 79 ft RG-179
–
AIS: TR-TSY-000191-compliant
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Chapter 3 Electrical Cards
• Output:
–
Bit rate: 51.84 Mbps +/– 20 ppm
–
Frame format: SONET
–
Line code: B3ZS
–
Termination: Unbalanced coaxial cable
–
Input impedance: 75 ohms +/–5%
–
Cable loss: Max 450 ft 734A, RG-59, 728A/Max 79 ft RG-179
–
AIS: TR-TSY-000191-compliant
–
Power level: –1.8 – +5.7 dBm
–
Pulse shape: ANSI T1.102-1988 Figure 8
–
Pulse amplitude: 0.36 to 0.85 V peak to peak
–
Loopback modes: Terminal and facility
–
Line build out: 0 to 225 ft; 226 to 450 ft
• Electrical interface: BNC or SMB connectors
DS1-14 and DS1N-14 Cards
• Operating temperature:
–
C-Temp (15454-EC1-12): 0 to +55 degrees Celsius
–
I-Temp (15454-EC1-12-T): –40 to +65 degrees Celsius
• Operating humidity: 5 to 95%, noncondensing
• Power consumption: 36.60 W, 0.76 A, 124.97 BTU/hr
• Dimensions:
–
Height: 321.3 mm (12.650 in.)
–
Width: 18.2 mm (0.716 in.)
–
Depth: 228.6 mm (9.000 in.)
–
Card weight: 2.0 lbs, 0.9 kg
• Compliance: ONS 15454 cards, when installed in a system, comply with these standards: Safety:
UL 1950, CSA C22.2 No. 950, EN 60950, IEC 60950
3.4 DS1-14 and DS1N-14 Cards
The ONS 15454 DS1-14 card provides 14 Telcordia-compliant, GR-499 DS-1 ports. Each port op erates
at 1.544 Mbps over a 100 ohm twisted-pair copper cable. The DS1-14 card can function as a working or
protect card in 1:1 protection schemes and as a working card in 1:N protection schemes.
The DS1-14 card supports 1:1 protection. The DS1-14 can be a working card in a 1:N prot ection scheme
with the proper backplane EIA and wire-wrap or AMP Champ connectors. You can also provision the
DS1-14 to monitor for line and frame errors in both directions.
You can group and map DS1-14 card traffic in STS-1 increments to any other card in an ONS 15454
except DS-3 cards. Each DS-1 is asynchronously mapped into a SONET VT1.5 payload and the card
carries a DS-1 payload intact in a VT1.5. For performance monitoring purposes, you can gather
bidirectional DS-1 frame-le vel infor mation (loss of frame, p arity errors, cyclic redu ndancy check [CRC]
errors, and so on).
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DS1-14 and DS1N-14 Cards
3.4.1 DS1N-14 Features and Functions
The DS1N-14 card supports the same features as the DS1-14 card in addition to enhanced protection
schemes. The DS1N-14 is capable of 1:N (N<
or AMP Champ connectors. The DS1N-14 card can function as a working or protect card in 1:1 or 1:N
protection schemes.
5) protection with the proper backplane EIA and wire-w rap
3.4.2 DS1-14 and DS1N-14 Slots and Connectors
You can install the DS1-14 card in Slot s 1 to 6 or 12 to 17 on th e ONS 15454. Each DS1 -14 port has
DSX-level (digital signal cross-connect frame) outputs supporting distances up to 655 ft.
If you use the DS1N-14 as a standard DS-1 card in a 1:1 protection group, you can install the
DS1N-14 card in Slots 1 to 6 or 12 to 17 on the O NS 154 54. I f you u se t he car d’s 1:N functionalit y,
you must install a DS1N-14 card in Slots 3 and 15 . Each DS1N-14 port features DSX-level outputs
supporting distances up to 655 ft depending on facility conditions.
Chapter 3 Electrical Cards
3.4.3 DS1-14 and DS1N-14 Faceplate and Block Diagram
Figure 3-2 shows the DS1-14 faceplate and the block diagram of the card.
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Chapter 3 Electrical Cards
Figure 3-2 DS1-14 Faceplate and Block Diagram
FAIL
ACT/STBY
SF
DS1-14 and DS1N-14 Cards
DS114
33678 12931
Protection
Relay
Matrix
14 Line
Interface
Units
STS1 to
14 DS1
Mapper
uP
DRAM
STS-1 / STS-12
Mux/Demux
ASIC
FLASH
Cross
Connect
Matrix
BTC
ASIC
B
a
c
k
p
l
a
n
e
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