A.4.5, A.4.5 hsu port specifications – Zhone Technologies IMACS-200 User Manual

Page 261

Advertising
background image

System Standards and Specifications

A-9

A.4.5

HSU Port Specifications

Number of

Data Ports

Physical Interfaces

Electrical Interfaces

2

2 female 25-pin DB25 D-connectors

ITU-T V.35

Data Speeds

N x 56k and N x 64k, where N = 1 to 24 (up to 1536 kbps) - Software Configurable by
DS0

Data Format

Synchronous

Data Protocol

Transparent

Transmit Clock per Port

Internal or External (software selectable)

Clock Polarity per Port

Normal or inverted (software selectable)

Data Polarity per Port

Normal or inverted (software selectable)

Diagnostics

RTS/CTS Delay: per
Port

0, 30, 60 or 100 ms (software selectable by port)

RTS Handshake per
Port

Permanent, local, ignore, local (software selectable by port)

BER Test per Port

Active or inactive
BER Test Patterns All Marks, All Spaces, 1:1, 1:7, QRSS, 511, 2047

Local Loopback per
Port

None, towards DTE, towards the network

Performance Statistics

Errored Seconds, Unavailable Second, Severely Errored Second, Burst Errored Second, Loss of
Packet Seconds, Loss of Frame Count

Standards Compatibility

ITU-T

V.35

V.11 (10/96)

V.28

Data Transmission of 48 kbps using 60-108 kHz Group Bank
Circuits.
Electrical characteristics for balanced double-current interchange
circuits operating at data signaling rates up to 10 Mbit/s.
Electrical characteristics for unbalanced double-current
interchange circuits.

EIA

Recommendations
RS-530

High Speed 25 Position Interface for Data Terminal Equipment,
Including Alternative 25 Position Connector.

Advertising