Protogate Freeway 3112, Руководство по установке оборудования

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Appendix A. Electrical Interfaces
Table A-1 shows the commonly used electrical interfaces for WAN connections. Each link in a 2-port or 4-port ICP
can be individually configured to EIA-232, EIA-449, EIA-530, or V.35. The 8-port ICP provides EIA-232 only. If
you select another value for an 8-port board, it will be ignored.
Note: The Freeway is always Data Terminal Equipment (DTE), while modems are Data Communications
Equipment (DCE).
Table A-1. Commonly Used Electrical Interfaces
Signal Name
Source
EIA-232 EIA-530 EIA-449 V.35
Mnemonic Pin Mnemonic Pins
(A/B)
Mnemonic Pins
(A/B)
Mnemonic Pins
Shield - - 1 - 1 - 1 - A
Transmitted
Data
DTE BA 2 BA 2 / 14 SD 4 / 22
Received Data DCE BB 3 BB 3 / 16 RD 6 / 24 104 R / T
Request to
Send
DTE CA 4 CA 4 / 19 RS 7 / 25 105 C
Clear to Send DCE CB 5 CB 5 / 13 CS 9 / 27 106 D
DCE Ready
(DSR)
DCE CC 6 CC 6 / 22 DM 11 / 29 107 E
DTE Ready
(DTR)
DTE CD 20 CD 20 / 23 TR 12 / 30 108 H
Signal Ground - AB 7 AB 7 SG 19 102 B
Receive Line
Signal Detect
(DCD)
DCE CF 8 CF 8 / 10 RR 13 / 31 109 F
Transmit
Signal Element
Timing
DCE DB 15 DB 15 / 12 ST 5 / 23 114 Y/AA
Receive Signal
Element
Timing
DCE DD 17 DD 17 / 9 RT 8 / 26 115 V / X
Local
Loopback
DTE LL 18 LL 18 LL 10 141 L
Remote
Loopback
DTE RL 21 RL 21 RL 14 140 N
Ring Indicator DCE CD 22 - - - - 125 J
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