Cable and Ethernet Specifications B-1
Cable and Ethernet Specifications
B
This appendix gives specifications for the following:
• Male-to-male null modem cable—connects a data terminal equipment (DTE)
device (terminal or PC) to the C0 port (See page B-2.)
• Male-to-male straight-through RS-232 cable—connects a data communications
equipment (DCE) device (modem) to the C0 port (See page B-3.)
• High-density 68-pin cable—connect modems to the high density ports on the
PortMaster 25 (See page B-4.)
• High-density 50-pin cable that splits into 50-pin connectors—connects U.S.
Robotics Quad modems to a PortMaster 25 (See page B-7.)
• RS-232 cable—connects external modems to an asynchronous ports
(See page B-10.)
• V.35 cable—connects a T1/E1 line to a W1 port (See page B-11.)
• X.21 cable—connects a T1/E1 line to a W1 port (See page B-12.)
• RS-530 cable—connect a T1/E1 line to a W1 port (See page B-13.)
• Category 5 twisted pair cable for the S/T interface—connects an ISDN BRI line to
the S/T interface (See page B-14.)
• Category 5 twisted pair cable for the U interface—connects an ISDN BRI line to
the U interface (See page B-14.)
• High-density 10-pin cable for the U interface—connects all four BRI ports on the
U interface to a punchdown block via the high density (HD) port (See page B-15.)
• Ethernet interface specifications. (See page B-16.)
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