User`s manual
Chapter 2 Chapter 2
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120 Ω balanced interface for operation over an SCSI II, female connector.
75 Ω unbalanced interface for operation over coaxial cable.
2.1.3.3.3 LAN Port Connections
The MUXpro have six LAN ports.
Each LAN port has a 10/100BaseTX Ethernet interface terminated in an RJ-45
connector, designated LAN 1 to LAN 6, respectively, for connection to LANs
operating on UTP media.
The interface connector is wired as a hub port that includes automatic crossover
detection and correction. Therefore, it can always be connected through a
“straight” (point-to-point) cable to any other 10/100BaseTX port (hub or station).
2.1.3.3.4 Supervisory Terminal Port Connections
The out-of-band supervisory port of the MUXpro, designated CRAFT, has a serial
RS-232 asynchronous DCE interface terminated in a 9-pin D-type female
connector, designated CRAFT. The port can be directly connected to terminals
that use a wired point-to-point cable.
2.1.3.3.5 Alarm Relays Connections
The alarm interface is included in the ALARM connector (see Appendix A ).
The interface includes four relays, two for the major alarms including office audio
and visible alarm system and the other two for the minor alarms including office
audio and visible alarm system as well.
2.1.3.3.6 Ambient Requirements
The ambient operating temperature of the MUXpro is 0 to 50°C (32 °F to 122 °F),
at a relative humidity of up to 95%, non-condensing.
The MUXpro is cooled by free air convection, and also has a miniature internal
cooling fan. When the MUXpro is installed in a 19" rack, allow at least 1U of space
below and above the unit.
2.1.3.3.7 Electromagnetic Compatibility Considerations
The MUXpro is designed to comply with the electromagnetic compatibility (EMC)
requirements of Sub-Part J of FCC Rules, Part 15, for Class A electronic
equipment, and additional applicable standards. To meet these standards, it is
necessary to perform the following actions: