Black Box MT1100A, Руководство пользователя

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Chapter 1 Introduction
Technical Specifications 1-3
1.3 Technical Specifications
E1 Interface Coding
HDB3 or AMI
Framing Unframed
Bit Rate 2.048 Mbps
Impedance 120 Ω , balanced
75
Ω
, unbalanced
RCV Signal Level 0 to -10 dB
XMT Signal Level
3V (
±
10%), balanced
2.37V (
±
10%), unbalanced
Connectors
RJ-45, 8-pin, balanced
Two BNC coaxial, unbalanced
Return Loss Better than 15 dB
T1 Interface
Coding B8ZS, AMI
Framing Unframed
Bit Rate 1.544 Mbps
Impedance 100 Ω , balanced
RCV Signal Level 0 to -10 dB
XMT Signal Level
3V (
±
10%), balanced
Connector RJ-45, 8-pin, balanced
Return Loss Better than 15 dB
DTE Interface
Type •
V.35: 34-pin, female
•
RS-530: 25-pin, D-type female
Control Signals
• CTS follows RTS
• DCD follows E1 state
• DSR is constantly ON
Timing Derived from three alternative sources:
• Internal oscillator
•
External, from the attached DTE
•
Receive, derived from the received signal
Indicators PWR (green) On – Power on
TXD (yellow) On – Data is being transmitted to the link
RXD (yellow) On – Data is being received from the link
LOS (red) On – No E1/T1 data is received from the link
TST (red) On – The local loopback is active