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Table of Contents

Engineering Specifications
6.1   Operational
6.2   Optical
6.3   Environmental
6.4   Mechanical
6.5   Electrical

Engineering Specifications


The tables below provide general specifications for the Cisco ONS 15200 system and specifications specific to the Cisco ONS 15252 Multichannel Unit (MCU) and Cisco ONS 15201 Single-Channel Unit (SCU) components. For module-level specifications, see the Cisco ONS 15200 Module Handbook.

6.1   Operational

Table 6-1 provides information about ONS 15200 operating conditions.

Table 6-1   System Parameters

Parameter Condition Maximum Unit

Bit rate per channel

100 Base FX Ethernet

100

Mbps

Bit rate per channel

Fiber Distributed Data Interface (FDDI)

125

Mbps

Bit rate per channel

OC-3/STM-1

155

Mbps

Bit rate per channel

Enterprise Systems Connection (ESCON)

200

Mbps

Bit rate per channel

D1 Video

270

Mbps

Bit rate per channel

OC-12/STM-4

622

Mbps

Bit rate per channel

OC-48/STM-16

2.5

Gbps

Bit rate per channel

2R mode

100 - 1.25

Mbps - Gbps

Bit rate per channel

Fiber Channel

1.06

Gbps

Bit rate per channel

Fiber Connect (FICON)

1.06

Gbps

Bit rate per channel

Gigabit Ethernet

1.25

Gbps

Fiber-protected channels

Optical protection (16 A-side and B-side channels)

16

Channels

Number of unprotected channels

No optical protection (16 A-side channels and 16 B-side channels)

32

Channels

Number of mixed fiber-protected and unprotected

Sum of 2 * # (fiber-protected channels) + # (unprotected channels)

32

Channels

6.2   Optical

This section describes optical performance, frequencies, and signal loss.

6.2.1   Optical Performance

Table 6-2 provides information about ONS 15200 optical performance.

Table 6-2   System Performance

Parameter Condition Minimum Unit

Maximum optical dispersion tolerance (very long-range transmitter)

At 2.0 dB optical penalty

3000

ps/nm

Maximum optical dispersion tolerance (long-range transmitter)

At 2.5 dB optical penalty

1800

ps/nm

Maximum optical dispersion tolerance (medium-range transmitter)

At 2.0 dB optical penalty

1800

ps/nm

6.2.2   Optical Frequencies

Table 6-3 shows how the sixteen optical channels are spaced.

Table 6-3   Channel Spacing

ITU Channel Frequency (THz) Wavelength (nm)

23

192.3

1558.98

25

192.5

1557.36

27

192.7

1555.75

29

192.9

1554.13

31

193.1

1552.52

33

193.3

1550.92

35

193.5

1549.32

37

193.7

1547.72

43

194.3

1542.94

45

194.5

1541.35

47

194.7

1539.77

49

194.9

1538.19

51

195.1

1536.61

53

195.3

1535.04

55

195.5

1533.47

57

195.7

1531.90

6.2.3   Optical Loss

This section describes the optical loss for the 15252 Multichannel Unit (MCU) and the 15201 Single-Channel Unit (SCU).

6.2.3.1   Multichannel Unit Optical Loss

Table 6-4 provides optical loss information for the Multichannel Unit (MCU). See Figure 6-1 to locate the paths where loss occurs in the MCU (for example, from B to U in a Network Adaptation Module [NAM]).

.

Table 6-4   MCU Optical Loss

Equipment Maximum (dB) Includes connectors (Y/N)
Network Adaptation Module

100% (no power split)

0.3

Y

90% coupler loss, B to V or R to K

0.8

Y

50% coupler loss, B to V or R to K

3.6

Y

10% coupler loss, B to V or R to K

11.0

Y

Hub Filter Module

Through loss, (adjacent channel), M to N or O to P

0.9

Y

Through loss, (non-adjacent channel), M to N or O to P

0.8

Y

Drop loss, M to R

2.1

Y

Add loss, V to P

1.9

Y

Line Module

Through signal insertion loss, P to H, or I to M

0.8

Y

Monitor signal insertion loss, P to X, or I to Y

11.0

Y

Connectors

Insertion loss, MU-type

0.3

Insertion loss, SC-type

0.3


Figure 6-1   15252 MCU optical path


6.2.3.2   Single-Channel Unit Optical Loss

Table 6-5 provides optical loss information for the SCU. See Figure 6-2 and Figure 6-3 to locate the paths where loss occurs in the SCU (for example, from I to H in a Collector Filter Module [CFM]). Figure 6-2 shows an unprotected path, and Figure 6-3 shows a protected path in the SCU.

Table 6-5   SCU Optical Loss

Equipment Maximum (dB) Includes connectors (Y/N)
Collector Filter Module: Unprotected (100/0 or 0/100)

Through loss (adjacent channel), I to H

0.9

Y

Through loss (non-adjacent channel), I to H

0.8

Y

Drop loss, I to K

2.1

Y

100% Add loss, B to H

1.9

Y

Collector Filter Module: Protected (90/10 or 10/90)

Through loss (adjacent channel), I to H

1.4

Y

Through loss (non-adjacent channel), I to H

1.3

Y

Drop filter loss, I to K

2.1

Y

10% Add loss, B to H

12.5

Y

90% Add loss, B to H

2.5

Y

Collector Filter Module: Protected (50/50)

Through loss (adjacent channels), I to H

1.4

Y

Through loss (non-adjacent channel), I to H

1.3

Y

Drop loss, I to K

2.1

Y

50% Add loss, B to H

5.6

Y

Connectors

Insertion loss, MU-type

0.3

Insertion loss, SC-type

0.3


Figure 6-2   15201 SCU unprotected optical path (100/0 or 0/100)



Figure 6-3   15201 SCU protected optical path (10/90, 90/10, and 50/50)


6.3   Environmental

Table 6-6 shows the environmental tolerances of ONS 15252 MCU and ONS 15201 SCU.

Table 6-6   Environmental Operating Conditions

Parameter Condition Min. Max. Unit

ONS 15252 maximum power consumption

140

Watts

ONS 15201 maximum power consumption

8

Watts

ONS 15252 normal operating temperature range

+5°C (41°F)

55°C (131°F)

Degrees

ONS 15201 normal operating temperature range

+5°C (41°F)

40°C (104°F)

Degrees

ONS 15252 operating humidity range

Noncondensing (between 1 and 25 g/m3)
Constraint: at most 0.024 kg of water per kg of dry air

5

85

Percent relative humidity

ONS 15201 operating humidity range

Noncondensing (between 1 and 25 g/m3)
Constraint: at most 0.024 kg of water per kg of dry air

5

85

Percent relative humidity


Note   The operating temperature and humidity ranges are normal climatic limits, i.e., values outside these ranges (but inside the short-term conditions specified in Telcordia GR-63-CORE) have a probability of occurrence of less than 1 percent.

6.4   Mechanical

Table 6-7 shows the physical dimensions of the ONS 15252 MCU subrack.

Table 6-7   ONS 15252 Subrack Dimensions

Parameter Units

Height

621.8 mm (24.5 in.)

Width

485 mm (19.1 in.)

Depth

279 mm (11 in.)

Weight

37 kg (82 lb.) maximum

Table 6-8 shows the physical dimensions of the ONS 15201 SCU subrack.

Table 6-8   ONS 15201 Subrack Dimensions

Parameter Units

Height

44.5 mm (1.75 in.)

Width

480 mm (18.9 in.)

Depth

275 mm (10.8 in.)

Weight

3 kg (6.6 lb.)

6.5   Electrical

Table 6-9 shows power consumptions of ONS 15252 MCU and ONS 15201 SCU nodes.

Table 6-9   Power Consumption

Parameter Max. Unit

ONS 15252 maximum power consumption

140

Watts

ONS 15201 maximum power consumption

8

Watts


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Posted: Thu Apr 17 12:33:09 PDT 2003
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