Zhone Technologies IMACS-200 manual HSU Port Specifications

A.4.5 HSU Port Specifications

	Number of			Physical Interfaces	Electrical Interfaces
	Data Ports
	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		0, 30, 60 or 100 ms (software selectable by port)
Port
RTS Handshake per		Permanent, local, ignore, local (software selectable by port)
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		None, towards DTE, towards the network
Port
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	Data Transmission of 48 kbps using 60-108 kHz Group Bank
		Circuits.
	V.11 (10/96)	Electrical characteristics for balanced double-current interchange
		circuits operating at data signaling rates up to 10 Mbit/s.
	V.28	Electrical characteristics for unbalanced double-current
		interchange circuits.
EIA	Recommendations	High Speed 25 Position Interface for Data Terminal Equipment,
	RS-530	Including Alternative 25 Position Connector.

System Standards and Specifications A-9