STM-1
The table below lists some parameters and the end of life power budgets for the fixed STM-1 optical interfaces that are supported by the 1643 AM and STM-1 SFP cages that are supported by the 1643 AMS:
|
Application |
S-1.1 |
L-1.1 |
L-1.2 |
|---|---|---|---|
|
Operating wavelength range |
1260-1360 nm |
1270-1360 nm |
1480-1580 nm |
|
Transmitter at reference point S | |||
|
Source type |
MLM |
SLM/MLM |
SLM |
|
Spectral width at -20 dB (max) |
NA |
1 nm (SLM) |
1 nm |
|
RMS spectral width (max) |
7.7 nm |
3 nm (MLM) |
NA |
|
Side mode suppression ratio (min) |
NA |
30 dB/NA |
30 dB |
|
Mean launched power (max) |
-8 dB |
0 dB |
0 dB |
|
Mean launched power (min) |
-15 dB |
-5 dB |
-5 dB |
|
Extinction ratio (min) |
8.2 dB |
10 dB |
10 dB |
|
Mask of the eye diagram of the optical transmit signal |
see G.957 |
see G.957 |
see G.957 |
|
Optical path between points S and R | |||
|
Maximum dispersion |
96 ps/nm |
NA/246 ps/nm |
NA |
|
Attenuation range |
0 - 12 dB |
10 - 28 dB |
10 - 28 dB |
|
Minimum optical return loss of the cable plant at point S including the optical connector |
NA |
NA |
20 dB |
|
Receiver at reference point R | |||
|
Sensitivity (min) at BER = 1 × 10 -10 |
-28 dBm -34 dBm (aggregate only) |
-34 dBm |
-34 dBm |
|
Overload (min) |
-8 dBm |
-10 dBm |
-10 dBm |
|
Optical path penalty |
< 1 dB |
< 1 dB |
< 1 dB |
|
Optical return loss of the receiver (min) |
NA |
NA |
25 dB |
Note: 1643 AM STM-1 (Aggregate and tributary) or STM-4 optical access is via an SC-type connector. Adaptors FC and ST are also supplied.
1643 AMS: All optical interfaces are available as SFPs (Small Form-Factor Pluggable Optics) for STM-1 transmission only.
Note that the 1643 AM supports S1.1 and L1.2 interfaces for STM-1 transmission, whereas, the 1643 AMS only supports S1.1, L1.1, and L1.2 SFPs. The 1643 AMS does not support STM-4 transmission.
STM-4 interfaces
The table below lists some parameters and the end of life power budgets for the fixed STM-4 interfaces that are only supported by the 1643 AM:
|
Application |
S-4.1 |
L-4.2 |
|---|---|---|
|
Operating wavelength range |
1274-1356 nm |
1480-1580 nm |
|
Source type |
MLM |
SLM |
|
Spectral width at -20 dB (max) |
NA |
1 nm |
|
RMS spectral width (max) |
2.5 nm |
NA |
|
Mean launched power (max) |
-8 dBm |
+2 dBm |
|
Mean launched power (min) |
-15 dBm |
-3 dBm |
|
Side mode suppression ratio (min) |
NA |
30 dB |
|
Extinction ratio (min) |
8.2 dB |
10 dB |
|
Mask of the eye diagram of the optical transmit signal |
see G.957 |
see G.957 |
|
Optical path between points S and R | ||
|
Maximum dispersion |
74 ps/nm |
NA |
|
Optical attenuation range |
0 - 12 dB |
10 - 24 dB |
|
Optical return loss of the cable plant at point S including the optical connector |
NA |
24 dB |
|
Receiver at reference point R | ||
|
Sensitivity (min) at BER = 1 × 10 -10 |
-28 dBm |
-28 dBm |
|
Overload (min) |
-8 dBm |
-8 dBm |
|
Optical path penalty |
< 1 dB |
< 1 dB |
|
Optical return loss of the receiver (min) |
NA |
27 dB |
Single-fiber Bidirectional SFPs
The table below lists some parameters and the end of life power budgets for the single fiber bidirectional STM-1 optical modules (SFPs).
|
Unit |
Downstream |
Upstream | |
|---|---|---|---|
|
Application |
S-1.2 |
S-1.1 | |
|
Data rate |
Mbit/s |
155 |
155 |
|
Target distance |
km |
15 |
15 |
|
Transmitter at reference point S/TP2 | |||
|
Source type |
SLM |
SLM | |
|
Wavelength |
nm |
1480 - 1500 |
1260 - 1360 |
|
Max. spectral width at -20 dB |
nm |
1 |
1 |
|
Mean launched power (max) |
dBm |
0 |
0 |
|
Mean launched power (min) |
dBm |
-6 |
-6 |
|
Maximum mean launched power in case Tx_Disable = high |
dBm |
-45 |
-45 |
|
Minimum extinction ratio |
dB |
6 |
6 |
|
Transmitter eye mask definition |
see G.957 |
see G.957 | |
|
Maximum reflectance of transmitter, measured at S/TP2 |
dB |
NA |
NA |
|
Maximum optical path penalty/Maximum transmitter and dispersion penalty |
dB |
1 |
1 |
|
Optical path between S/TP2 and R/TP3 | |||
|
Available power budget (BER = 1 × 10 -12) |
dB |
12.5 |
12.5 |
|
Minimum attenuation |
dB |
0 |
0 |
|
Maximum dispersion |
ps/nm |
275 |
132 |
|
Receiver at reference point R/TP3 | |||
|
Operating wavelength range |
nm |
1260 - 1360 |
1480 - 1500 |
|
Sensitivity (min) at BER = 1 x 10-12 |
dBm |
-19.5 |
-19.5 |
|
Minimum overload |
dBm |
0 |
0 |
|
Maximum reflectance of receiver, measured at R/TP3 |
dB |
-12 |
-12 |
1000BASE-SX SFP
The characteristics of the 1000BASE-SX SFP are summarized in the table below.
The 1000BASE-SX pluggable optic (850 nm short haul, multi-mode) uses a Low Power Laser (laser class 1/1 according to FDA/CDRH - 21 CFR 1010 & 1040/IEC 60825). The 1000BASE-SX pluggable optic complies with IEEE 802.3-2000 Clause 38. The following table describes the various operating ranges for the 1000BASE-SX pluggable optic over each optical fiber type.
|
Fiber Type |
Modal Bandwidth @ 850 nm (min. overfilled launch) (MHz x km) |
Minimum range (m) |
|---|---|---|
|
62.5 µm MMF |
160 |
2 ... 220 |
|
62.5 µm MMF |
200 |
2 ... 275 |
|
50 µm MMF |
400 |
2 ... 500 |
|
50 µm MMF |
500 |
2 ... 550 |
The following table lists the specific optical characteristics for a 1000BASE-SX pluggable optic.
|
Application |
1000BASE-SX |
|---|---|
|
Bit rate |
1.25Gb/s +/-100ppm |
|
Operating wavelength range [Non Peltier cooled] |
770 - 860 nm |
|
Transmitter characteristics |
|
|
Transmitter type |
Shortwave Laser |
|
Trise/Tfall (max, 20–80%, λ > 830 nm) |
0.26 ns |
|
Trise/Tfall (max, 20–80%, λ ≤ 830 nm) |
0.21 ns |
|
RMS spectral width (max) |
0.85 nm |
|
Average launch power (max) |
-1.1 dBm (Class 1M safety limit as defined by IEEE 802.3–2000 Clause 38.7.2) |
|
Average launch power (min) |
–9.5 dBm |
|
Average launch power of OFF transmitter (max) |
–30 dBm |
|
Extinction ratio (min) |
9 dB |
|
RIN (max) |
–117 dB/Hz |
|
Mask of the eye diagram of the optical transmit signal |
see IEEE802.3 |
|
Receive Characteristics |
|
|
Average receive power (max) |
0 dBm |
|
Receive sensitivity (min) at BER = 1 x 10 -12 |
–17 dBm |
|
Return loss (min) |
12 dB |
|
Stressed receive sensitivity (measured with conformance test signal at TP3 for BER = 10–12 at the eye center) |
–12.5 dBm (62.5 µm MMF) –13.5 dBm (50 µm MMF) |
The following table lists the worst-case power budget and link penalties for a 1000BASE-SX pluggable optic. Link penalties are used for link budget calculations.
|
Description |
Unit |
62.5 µm MMF |
50 µm MMF |
||
|---|---|---|---|---|---|
|
Modal bandwidth as measured at 850 nm (minimum, overfilled launch) |
MHz × km |
160 |
200 |
400 |
500 |
|
Link power budget |
dB |
7.5 |
7.5 |
7.5 |
7.5 |
|
Operating distance |
m |
220 |
275 |
500 |
550 |
|
Channel insertion loss (a wavelength of 830 nm is used to calculate the values) |
dB |
2.38 |
2.60 |
3.37 |
3.56 |
|
Link power penalties (a wavelength of 830 nm is used to calculate the values) |
dB |
4.27 |
4.29 |
4.07 |
3.57 |
|
Unallocated margin in link power budget (a wavelength of 830 nm is used to calculate the values) |
dB |
0.84 |
0.60 |
0.05 |
0.37 |
1000BASE-LX SFP
The following table lists the specific optical characteristics for a 1000BASE-LX pluggable optic.
The 1000BASE-LX pluggable optic uses a Low Power Laser (laser class 1/1 according to FDA/CDRH - 21 CFR 1010 & 1040/IEC 60825). The 1000BASE-LX pluggable optic complies with IEEE 802.3-2000 Clause 38. The table below describes the various operating ranges for the 1000BASE-LX pluggable optic over each optical fiber type.
|
Fiber Type |
Modal Bandwidth @ 1300 nm (min. overfilled launch) (MHz × km) |
Minimum range (meters) |
|---|---|---|
|
10 µm SSMF |
N/A |
2 to 5000 |
The following table lists the specific optical characteristics for a 1000BASE-LX pluggable optic.
|
Application |
1000BASE-SX |
|---|---|
|
Bit rate |
1.25Gb/s +/-100ppm |
|
Operating wavelength range [Non Peltier cooled] |
1270 - 1355 nm |
|
Transmitter Characteristics |
|
|
Transmitter type |
Longwave Laser |
|
Trise/Tfall (max, 20–80%) |
0.26 ns |
|
RMS spectral width (max) |
4 nm |
|
Average launch power (max) |
-3 dBm |
|
Average launch power (min) |
-11 dBm |
|
Average launch power of OFF transmitter (max) |
-30 dBm |
|
Extinction ratio (min) |
9 dB |
|
Mask of the eye diagram of the optical transmit signal |
see IEEE802.3 |
|
RIN (max) |
-117 dB/Hz |
|
Receive Characteristics |
|
|
Average receive power (max) |
-3 dBm |
|
Receive sensitivity |
-19 dBm |
|
Return loss (min) |
12 dB |
|
Stressed receive sensitivity (measured with conformance test signal at TP3 for BER = 10–12 at the eye center) |
-14.4 dBm |
The following table lists the worst-case power budget and link penalties for a 1000BASE-LX pluggable optic. Link penalties are used for link budget calculations.
|
Description |
Unit |
10 µm SMF |
|---|---|---|
|
Link power budget |
dB |
8 |
|
Operating distance |
m |
5000 |
|
Channel insertion loss (a wavelength of 1270 nm is used to calculate the values) |
dB |
4.57 |
|
Link power penalties (a wavelength of 1270 nm is used to calculate the values) |
dB |
3.27 |
|
Unallocated margin in link power budget (a wavelength of 1270 nm is used to calculate the values) |
dB |
0.16 |
1000BASE-ZX SFP
The following table lists the specific optical characteristics for a 1000BASE-ZX pluggable optic.
The 1000BASE-ZX pluggable optic uses a Low Power Laser (laser class 1/1 according to FDA/CDRH - 21 CFR 1010 & 1040/IEC 60825). The 1000BASE-ZX pluggable optic complies with IEEE 802.3-2002 Clause 38. The following table lists the specific optical characteristics for a 1000BASE-ZX pluggable optic.
|
Application |
1000BASE-ZX |
|---|---|
|
Bit rate |
1.25Gb/s +/-100ppm |
|
Operating wavelength range [Non Peltier cooled] |
1500-1580 nm |
|
Transmitter at reference point TP2 |
|
|
Source type |
SLM |
|
Spectral width at -20 dB |
1.0 nm |
|
Side mode suppression ratio (min) |
30dB |
|
Mean launched power (max) |
+5 dBm |
|
Mean launched power (min) |
0 dBm |
|
Extinction ratio (min) |
9.0 dB |
|
Mask of the eye diagram of the optical transmit signal |
see IEEE802.3 |
|
RIN (max) |
-120 dB/Hz |
|
Optical path between points TP2 and TP3 |
|
|
Optical return loss of the cable plant at point TP2 including the optical connector |
20 dB |
|
Maximum dispersion |
1600 ps/nm |
|
Attenuation range |
5 - 21 dB |
|
Optical path penalty (max) |
1.5 dB |
|
Receiver at reference point TP3 |
|
|
Sensitivity (min) at BER = 1 x 10-12 |
-22.5 dBm |
|
Overload (min) |
0 dBm |
|
Optical return loss of the receiver (min) |
12 dB |
Electrical STM-1 interface
The following table lists some parameters and the End of Life power budget of the STM-1 electrical interface unit for the 1643 Access Multiplexer AM/1643 Access Multiplexer Small AMS:
|
Unit |
Value | |
|---|---|---|
|
Application |
intra-office | |
|
SDH Level |
type |
STM-1 |
|
Transmission rate |
kbit/s |
155,520 ± 20 ppm |
|
Line coding |
type |
Coded Mark Inversion (CMI, G.703-12.1) |
|
Impedance |
Ω |
75 |
|
Return Loss (8 ... 240 MHz.) |
dB |
15 |
|
Maximum cable attenuation (78 MHz) |
dB |
12.7 |
STM-1 tributary interface at 155 Mbit/s according to G.957. The 155 Mbit/s optical access is done with a universal connector type allowing SC, FC/PC, ST connector types without external optical cable conversion 1643 AM only.
Note: The STM-1 aggregate interface of 1643 AMS according to G.957 utilizes SFP's with LC connector. SFP usage is only available for 1643 AMS STM-1 interface.
STM-1 tributary interface at 155 Mbit/s according to the ITU G703-15. The physical interface for the STM-1 signals is a coaxial female DIN 1.6/5.6 type connector with an impedance of 75 Ω or a DIN 1.0/2.3 type connector if an SFP is used.
Interface at 1.544 Mbit/s ± 130 ppm, AMI or B8ZS encoded (programmable in groups of 8) and conforming to G.703-2 standard 1991, asynchronously mapped via VC-11 to a TU-12. The 1.5 Mbit/s electrical (DS1) interface access is via a RJ45 connector suitable for symmetrical twisted pair cables with an impedance of 100 Ω.
Interface at 2.048 Mbit/s ± 50 ppm, HDB3 coded and conforming to G.703 standard 1991, asynchronously mapped via a VC-12 in TU-12. The 2 Mbit/s electrical (E1) interface access is via RJ45 connector suitable for symmetrical twisted pair cables either with an impedance of 120 Ω or coaxial cables with an impedance of 75 Ω.
Each 2 Mbit/s tributary interface (main card or optional card) can be operated in ISDN PRI (Primary Rate Interface) or Leased-Line mode. It allows to transmit “30 B+D” according to G.962 and I.431. This feature requires the processing of the overhead contained in timeslot 0 (TS0) of the 2 Mbit/s signal.
Interface at 34.368 Mbit/s ± 20 ppm, HDB3 encoded and conforming to G.703-8 October 1998, asynchronously mapped into LO-VC3. The 34 Mbit/ s electrical clear channel (E3) interface access is via a coaxial female DIN 1.6/5.6 type connector with an impedance of 75 Ω.
Interface at 44.736 Mbit/s ± 20 ppm, B3ZS encoded and conforming to G.703-6 October 1998, directly mapped in a LO-VC3. The 45 Mbit/s electrical tributary (DS-3) interface access is via a coaxial female DIN 1.6/5.6 type connector with an impedance of 75 Ω.
A 10/100BaseT Ethernet Interface (LAN interface) with auto-negotiation supporting Ethernet and IEEE 802.3, 1998 access protocols. Auto-negotiation of the data rate (10 Mbit/s or 100 Mbit/s) and of the mode (half-duplex and full duplex). The 10/100BaseT Ethernet Interface access is via a RJ45 connector.
Interface at 2.048 Mbit/s ± 50 ppm asynchronously mapped via VC-12 in TU-12 with physical characteristics and DCE control signalling according X.21 for leased circuit service (point to point). The X.21 Interface access is via a 15 pin female sub-D connector (ISO 4903 recommendation).
The jitter and shift levels comply with G.823 and G.783.
An SHDSL interface over a single copper pair (two wires) that allows for the transport of either an E1 or an TU-12 over SHDSL in compliance with ITU-T standards.
Interfaces:
12 standard SHDSL physical interfaces compliant ITU-T G.991.2 and ETSI TS 101 524 on single (twisted) copper pair
RJ-45 connector suitable for symmetrical 135 Ω twisted pair cable.
Possible operation in TU-12 or E1 mode.
Selection made per option board by software:
TU-12 mapping in SHDSL:
E1 mapping in SHDSL:
ITU G.991.2 Appendix E.5 (= ETSI TS 101 524 D2048U) Clear channel TPS-TC framing for unstructured E1 (plesiochronous SHDSL transport).
Flexible TU-12 slot/SHDSL port mapping assignment.
SHDSL span fault management Incoming & Outgoing loopbacks at SHDSL interface for installation or fault localization-
Surge protection K.20 and K.21.
SDH Element Management (Alcatel-Lucent OMS, ITM-CIT):
Remote NTUs management via in-band SHDSL EOC channel (~3.3kbit/s). All provisioning of NTU device made via it’s associated LTU.
The 1643 AM/1643 AMS support an AU-4 <-> VC-4 <-> TUG-3 <-> TUG-2 <-> TU-12 <->VC-12 <->E1 mapping scheme for each VC-12 created and terminated in the system
The 1643 AM/1643 AMS support an AU-4 <-> VC-4 <-> TUG-3 <-> TUG-2 <-> TU-12 <-> VC-11 <->DS1 mapping scheme for each VC-11 created and terminated in the system
The 1643 AM/1643 AMS support an AU-4 <-> VC-4 <-> TUG-3 <-> TU-3 <-> VC-3 <->E3 mapping scheme for each VC-3 created and terminated in the system
The1643 AM/1643 AMS support an AU-4 <-> VC-4 <-> TUG-3 <-> TU-3 <-> VC-3 <-> DS3 mapping scheme for each VC-3 created and terminated in the system.
The equipment supports bi-directional, non-blocking cross-connection switching at the VC-3 level and at the VC-12 level within one selected VC-4 from each line interface.
The equipment provides 1 + 1 MSP protection for STM-1 optical aggregate or STM-1 optical or electrical tributary interfaces
The equipment provides VC-11/VC-12, VC-3 or VC-4 SNC/N (1643 AM for STM-4 version only) protection.
Synchronization can be derived from the incoming STM-1 or STM-4 (1643 AM only) aggregate signals
Synchronization can be derived from the incoming STM-1 tributary signals (1643 AM STM-4 version only)
The 1643 AMS supports synchronization derived from an incoming 2 Mbit/s (E1 or DS1) data input from the main board and option card
External synchronization output at 2.048 MHz is according to G.703-10 (SYNC-OUT, SYNC-I/O) via RJ45 connector with an impedance of 120 Ω symmetrical or with an impedance of 75 Ω
The next table shows the processing of SOH (Section OverHead):
|
Overhead bytes |
Function |
Processing |
|---|---|---|
|
A1-A2 |
Framing A1=11110110 (HF6) Framing A2=00101000 (H28) |
Yes |
|
J0 |
Regenerator section trace identifier |
Yes |
|
C1 |
Regenerator section trace Trace/frame identifier |
Fixed to 00000001 |
|
B1 |
RS Bit error monitoring (BIP-8) |
Yes |
|
B2 |
MS Bit error monitoring (BIP-8) |
Yes |
|
D1 to D12 |
Data communication channel (DCC) D1 to D3 or D4 to D12 can be selected |
D1-D3 fixed to 01010101 D4 to D12 used as DCC |
|
E2 |
Codirectional interfaces at 64 kbit/s (J64), in accordance with G.703 (Service channel) |
Yes |
|
F1 |
64 kbit/s user channel |
Fixed to 11111111 |
|
K1, K2 (bit 1 to 5) |
Automatic Protection Switching (APS) channel for MSP |
Yes |
|
K2 (bit 6 to 8) |
Remote alarm MS (MS-FERF) |
Yes |
|
S1 |
Synchronization state |
Yes |
|
M1 |
Remote error indication MS (MS-REI) |
Yes |
|
Z1, Z2 |
Reserved |
Fixed to 11111111 |
|
NU |
National use |
11111111 |
The next table shows the processing of the POH (Path Overhead) of VC-12:
|
Overhead bytes |
Function |
Processing |
|---|---|---|
|
V5 (bit 1 to 2) |
VC-12 BIP-2 error checking |
Yes |
|
V5 (bit 3) |
REI path (FEBE) |
Yes |
|
V5 (bit 4) |
RFI path |
Fixed to 0 |
|
V5 (bit 5 to 7) |
Label of VC-12 path |
Yes |
|
V5 (bit 8) |
RDI path (FERF) |
Yes |
|
J2 |
VC-12 Trace identifier |
Yes |
|
Z6 |
Connection/monitoring |
Fixed to 0 |
|
K4 (bit 1 to 4) |
VC-12 APS path |
Fixed to 0 |
|
K4 (bit 5 to 6) |
Reserved |
Fixed to 0 |
The next table shows the processing of the POH of VC-3:
|
Overhead bytes |
Function |
Processing |
|---|---|---|
|
J1 |
VC3 trace identifier |
Yes |
|
B3 |
Path bit error monitoring (BIP-8) |
Yes |
|
C2 |
Path signal label |
Yes |
|
G1 |
REI/RDI path |
Yes |
|
F2 |
User channel |
Fixed to 0 |
|
F3 |
User channel |
Fixed to 0 |
|
H4 |
Multiframe indicator |
Fixed to 11111111 |
|
K3 (bit 1 to 4) |
VC-4 APS path |
Fixed to 0 |
|
K3 (bit 5 to 6) |
Reserved |
Fixed to 0 |
|
Z5 |
Network control |
Fixed to 0 |
The next table shows the processing of the POH of VC-4
|
Overhead bytes |
Function |
Processing |
|---|---|---|
|
J1 |
VC4 trace identifier |
Yes |
|
B3 |
BIP-8 path |
Yes |
|
C2 |
Path signal label |
Yes |
|
G1 |
REI/RDI path |
Yes |
|
F2 |
User channel |
Fixed to 0 |
|
F3 |
User channel |
Fixed to 0 |
|
H4 |
Multiframe indicator |
Yes |
|
K3 (bit 1 to 4) |
VC-4 APS path |
Fixed to 0 |
|
K3 (bit 5 to 6) |
Reserved |
Fixed to 0 |
|
Z5 |
Network control |
Fixed to 0 |
Note: The ISDN feature requires the processing of the overhead contained in timeslot 0 (TS0) of the 2 Mbit/s signal.
Two possibilities of Power supply: DC power supply or AC power supply to choose when ordering the equipment (it is not possible to modify only the type of the Power supply of an equipment).
Power Consumption, in STM-1 configuration is of 13 watts for the basic unit or of 25 watts with any option card
Power Consumption, in STM-4 configuration is of 25 watts for the basic unit or of 40 watts with any option card
The system optionally supports the grounding philosophy according to ETSI Requirements 300 253, January 1995 (battery return connected to ground).
The following possibilities are available:
Voltage range DC: –24 VDC, –48 VDC and –60 VDC (–18 VDC minimum, –72 VDC maximum).
Voltage range AC: 120 VAC to 240 VAC (90 VAC minimum, 264 VAC maximum).
F-interface for Craft Interface Terminal via RJ45 connector with metal shell for grounding (ITM-CIT)
The interface conforms to V.10/RS-232C standards.
Q-LAN Interface via RJ45 connector with metal shell for grounding (Ethernet-10BASE-T)
This interface conforms to IEEE 802.3 Ethernet standards.
The user can assign, through the EMS or local workstation, an alarm message and alarm severity to each of the four miscellaneous discrete inputs (MDIs). They are equivalent with other system alarms.
When receiving power, all four miscellaneous discrete outputs (MDOs) are normally open. If power is lost, MDO 1’s contacts close (assigned to indicate power failure). MDO 2-4 are respectively assigned to Prompt alarm, Deferred alarm and Information alarm.
The MDI inputs and MDO outputs are available from a 25 pin SUB-D male connector.
Performance monitoring is in accordance with ITU-T G.826 and G.784
The following four parameters are available to estimate the error performance of a path:
Monitoring can be done on the incoming MS4, MS1, VC-4, VC-3, VC-12, VC-11 signals of the 1643 AM/1643 AMS unit
Performance monitoring data is stored in one current and sixteen recent 15 minutes registers, and one current and one recent 24 hours registers. Note that these counters are only applicable to Lucent OMS users. However, ITM-CIT users will only have access to currently available PM bins.
Threshold reports are generated when user-settable performance parameters are exceeded during 15 minutes and 24 hours periods
During reset, for several types of PM counters on CC, TS1, LS1, TS2 show the UAS values to be counted. Only after TS2 enters configured status, the software components can start to count the PM counters, for the seconds in which TS2 is not configured. Software will mark these seconds to UAS whether there is traffic or not. During an upgrade all PM points like MS, VC3 and VC4 are affected with UAS.
Ethernet performance monitoring information can be derived from packets sent, bytes received and bytes dropped. This information is available in 15 minutes or 24 hours registers.
ISDN Performance monitoring information can be derived for 2 Mbit/s signal from pN_EBC (Near-end Errored Block Count).
For transparent, it is possible to do near-end performance monitoring on each 2 Mbit/s signal in both directions (PDH to SDH and SDH to PDH) at the 2 Mbit/s system interface. Near-end information is obtained from CRC-4 violations and defects (E1 non-intrusive monitoring).
1643 AM:
1643 AMS:
The environmental conditions applicable for the 1643 AM/1643 AMS:
Storage compliant with ETSI 300 019-1-1 Class 1-2, February 1992:
- Temperature range -5°C to +45°C
- Humidity of 5 to 95% without condensation.
Transport compliant with ETSI 300 019-1-2 Class 2-3, February 1992:
- Temperature range -5°C to +45°C
- Humidity of 5 to 95% without condensation.
ETSI EMC - The system meets the requirements of EN 300 386-2 V.1.1.3 (december 1997) for equipment installed in locations other than telecom centers.
Optical safety compliant with IEC 60825-1 Ed 1.1 (1998/01) and IEC 60825-2 Ed 2 (2000/05).
The following table shows the environmental conditions for the 1643 AM/1643 AMS. The data refers to applications with and without X4IP option cards:
|
Power Type |
X4IP installed Note: The X8PL and X5IP option cards do not have temperature limitations. |
Min Temp. |
Max Temp |
Min Hum. |
Max Hum |
Compliant to ETS 300 019-1-3 of February. 1992 & Amendment A1 June 1997 |
|
DC |
No |
-5 |
+45 |
5% |
95% |
Class 3.2 |
|
Yes |
+5 |
+40 |
5% |
85% |
Class 3.1 | |
|
AC |
No |
-5 |
+45 |
5% |
90% |
Class 3.1E |
|
Yes |
+5 |
+40 |
5% |
85% |
Class 3.1 |
It is assumed that the X4IP option board is used in climate controlled environments. Additionally, a fan unit is available for improving the air flow.
Installation in street cabinets supported (1643 AM only), when street cabinets provides required environment conditions.
Important! Ensure that the 1643 AM/1643 AMS units have reached room temperature and are dry before taking them into operation.
For further information, please refer to the 1643 AM/1643 AMS Installation Guide.
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