E.2 physical description, E.3 general specifications – Comtech EF Data CDM-700 User Manual
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CDM-700 High Speed Satellite Modem
Revision 5
Gigabit Ethernet Interface (GbEI) (CDI-70)
MN/CDM700.IOM
E–2
E.2 Physical
Description
The GBEI is implemented on a 3.95 x 7.022 inch (10.03 x 17.83 cm) PCB. Connectivity to the
CDM-700 will be implemented with a 96-pin DIN receptacle, and the LAN interface consists of
an RJ-45 connector with link status and link activity Light-Emitting Diode (LED) indicators (at
minimum).
E.3 General
Specifications
Table E-1. Interface Specifications
General Specifications
Data Framing
10/100/1000 Base-T Interface: RFC-894 “Ethernet”
Frame Size, Max
1632 bytes
Data Framing Format (WAN)
HDLC (Standard Single Channel)
Connectors
RJ-45 female, 100
Ω
Electrical Properties
Per IEEE 802.3ab
Packet Types
Burst or distributed IPV4
Signal Types
Serial data
Voltage Level
Per IEEE- 802.3ab
Packet Latency
50 ms maximum
Flow Control
None
Cable Length, Maximum
100 meters CAT 5 cable, patch cords and connecting hardware, per ISO/IEC
11801:1995 and ANSI/EIA/TIA-568-A (1995)
Hot Pluggable (cable)
Yes
Hot Pluggable (card)
NO
LEDs
Link status, link activity
Additional GBEI Statistics Summary specifications are provided in Chapter 6, in the Section
describing the front panel commands for (CONFIG:) Intfc1 (CDI-70 Gigabit Ethernet Interface).