PS-67

TDM G.SHDSL

The Single-pair High-bit-rate Digital Subscriber Line System, PS-67, provides full duplex capability to support selected symmetric user data rates for T1, E1 or N x 64 Kb/s (range from 64 to 4608 Kb/s) leased line services or Ethernet interface extension using a Trellis Coded Pulse Amplitude Modulation (TCPAM) line code over one or two non-loaded two-wire metallic cable pairs.

The two-pair application of PS-67 doubles data transmission rate and extends transmission distance for the same data rate.

PS-67 includes a standalone model and a rackmount model with up to 16 SHDSL interfaces.

  • Complies with ITU-T G.991.2 Annex A and B.
  • Flexible user interface, T1/E1, V.35, V.36, RS-449, EIA530, X.21 DTE, 10/100BaseT Ethernet Interface selection.
  • T1 speed is n x 64 Kb/s, n=1 to 24 for 1 pair and 2 pairs.
  • E1 speed is n x 64 Kb/s, n=1 to 32 for 1 pair and 2 pairs.
  • DTE/LAN speed of n x 64 Kb/s, n=1 to 36 for 1 pair.
  • DTE/LAN speed of n x 64 Kb/s, n=1 to 72 for 2 pairs.
  • Cross over detectable capacity for 2 pair system.
  • Performance monitoring feature for on-line quality monitor.
 
  • Loopback and test pattern for on-site trouble shooting.
  • V.54 remote loopback function implemented.
  • Each unit can be configured to STU-C or STU-R mode.
  • Each unit can be configured to sealing source or sink.
  • Standalone model applies LCD panel for greater efficiency.
  • GUI SNMP-based and remote Telnet Network Management System to centrally manage PS-67 system.
  • Designed to support Remote Power Feeding (Option)


    G.shdsl Interface

  • Number of pair: One pair or two pairs
  • Line Rate: N x 64 Kb/s (Data rate) + 8 Kb/s (Overhead) + 8 Kb/s
    (for T1 interface only)N = 3~36
  • Data Rate:
    The PS-67 supports symmetric multiple 64 Kb/s operation
    which includes
    • 1 pair : data rate - 64 to 2304 Kb/s
    • 2 pair : data rate - 64 to 4608 Kb/s
    as according to different interfaces (T1/E1/DTE/Ethernet).
  • Frame Structure: Complies with ITU-T G.991.2 section 7.1.1
  • Modulation Method: 16-TCPAM
  • Impedance: Nominal 135Ω ± 5%
  • Total Output Power
    • The STU-C and STU-R support power backoff function and the power backoff levels comply with Table 6-2 of ITU-T Rec. G.991.2.
    • The symmetric PSD of STU-C and STU-R complies with ITU-T Rec. G.991.2 PSD masks.

  • T1 Interface

  • Line Rate : 1544 Kb/s ± 32 ppm.
  • Data Rate : N x 64 Kb/s, N = 1~24.
  • Frame Format : SF, ESF or Unframed.
  • Line Code : AMI or B8ZS.
  • Impedance : 100 Ω± 5%, balanced.
  • Pulse Shape : Complies with mask of ITU G.703.
  • Power Level : For an all-one transmitted signal, the power in 3 kHz band centered at 772 kHz shall be between 12.6 and 17.9 dBm. The power in 3 KHz band centered at 1544 kHz shall be at least 29 dB below that at 772 kHz.
  • Jitter : Complies with ITU G.823 Jitter requirement.
 

    E1 Interface

  • Line Rate : 2048 Kb/s ± 50 ppm.
  • Data Rate : N x 64 Kb/s, N = 1~32.
  • Frame Format : Unstructured or Structured framing.
  • Line Code : HDB3 or AMI.
  • Impedance : 120 Ω± 5%, balanced.
  • 75Ω± 5%, unbalanced.
  • Pulse Shape : Complies with mask of ITU G.703.
  • Jitter : Complies with ITU G.823 Jitter requirement.

  • DTE Interface

  • Interface Type : V.35, V.36, EIA530, RS449, X.21.
  • Data Rate : N x 64 Kb/s, N = 1~36 (one pair) , N = 1~72 (two pairs)

  • Ethernet Interface

  • Ethernet Interface : 10/100BaseT auto sensing and 10M/100M half/full Duplex configurable Ethernet interface with auto MDIX Ethernet interface.
  • Electrical Characteristics : complies with IEEE 802.3/IEEE 802.3u.
    Bridge Capacity : Supports up to 2048 MAC learning addresses with 4-layer hashing algorithm and Bridge filter function.
  • Encapsulation format : HDLC.
  • Data Rate : N x 64 Kb/s, N = 1~36 (one pair) , N = 1~72 (two pairs)
  • Throughput : Non-blocking full Packet Rate.

    Environment

  • Shelf and Standalone type: 0 ~ 60°C, up to 95% non-condensing relative humility
  • Power Supply
    • Shelf type : -36 ~ -72 Vdc
    • Standalone : -36 ~ -72 Vdc, 90~260Vac or dual DC and AC power without external adapter
  • Regulations
    • EMC : CISPR 22 Class A, FCC Part 15 Subpart B, Class A
    • Surge : IEC 1000-4-5 Class 2
  • Dimensions
    • Shelf type : 222mm x 437mm x 306mm (HxWxD)
    • Standalone : 40mm x 200mm x 300mm (HxWxD)

  • Performance Monitoring Management

  • SHDSL Interface
    • Current and 32 records of 15 minute LOSWS, ES, SES and UAS.
    • Current and 7 records of 24 hour LOSWS, ES, SES and UAS.
  • T1/E1 Interface
    • Current and 96 reocrds of 15 minute LCV, ES, SES and UAS.
    • Current and 7 records of 24 hour LCV, ES, SES and UAS.

  • Fault Management

  • SHDSL Interface
    • LOSW alarm.
    • SNR, loop attenuation and Performance Monitor cross over threshold.
  • T1/E1 Interface
    • LOS, LOF, AIS and RAI alarm.
    • Performance Monitor cross over threshold.
  • DTE and Ethernet Interface : Disconnection alarm.

  •  

 

    Maintenance Management

  • SHDSL Interface
    • Local loopback
    • Remote loopback
    • Test pattern and BER meter
  • T1/E1 Interface
    • Local loopback
    • Remote loopback
    • Test pattern and BER meter
  • DTE/Ethernet Interface
    • Local loopback
    • Remote loopback
    • Test pattern and BER meter
    • V54 In_Band loopback code function

Distance

Line Speed No of pair Data Rate
(Max.)
N x 64kb/s 0.4 mm 0.5 mm 0.6 mm
200 kb/s 1 192 kb/s N=3 7.3 km 8.0 km 13.4 km
2 384 kb/s N=6
776 kb/s 1 768 kb/s N=12 5.5 km 7.5 km 12.3 km
2 1536 kb/s N=24
1032 kb/s 1 1024 kb/s N=16 5.2 km 7.3 km 10.2 km
2 2048 kb/s N=32
1544 kb/s 1 1536 kb/s N=24 4.3 km 5.6 km 8.0 km
2 3072 kb/s N=48
2056 kb/s 1 2048 kb/s N=32 4.0 km 5.5 km 7.8 km
2 4096 kb/s N=64
2312 kb/s 1 2304 kb/s N=36 3.8 km 5.0 km 7.5 km
2 4608 kb/s N=72