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AccelePort C/X and EPC/X Remote Cabling AccelePort C/X and EPC/X Remote Cabling Application Notes: C/X and EPC/X Cabling Guide
The following cable guides are only for use with plastic C/CONs.
RS422 Local Cable Configuration
Local Cabling requires the use of Shielded Cable (STP Cat 3 or higher is
fine, UTP cable cannot be used reliably). Local cabling will not work
reliably if it is run through patch panels. A direct cable run from server
to concentrator is required. The cable is limited to 1000 feet, if you
need a longer cable, a four-wire, half-speed cable is diagrammed in the
C/Con manual.
The cable itself must be pinned as follows:
Digi Card Host Adapter
HD15 Male HD15 Female
Signal Pin Pin Signal
RxD - 1--------1 TxD -
RxD + 2--------2 TxD +
RxC - 4--------4 TxC -
RxC + 5--------5 TxC +
TxD - 6--------6 RxD -
TxD + 7--------7 RxD +
TxC - 9--------9 RxC -
TxC + 10-------10 RxC +
Shield ----------- Shield
RS232 and RS422/V.35 C/X and EPC/X Remote Cabling Spec version 2.0
10/02/98
V.35/ Winchester
Digi Card Local V.35 Remote V.35 Concentrator
HD15 Male on Winchester on Winchester HD15 Female
Signal Pin Pin Signal Signal Pin Pin Signal
RxD - 1--------R A RxD RxD A R--------6 RxD -
RxD + 2--------T B RxD RxD B T--------7 RxD +
RxC - 4--------V A SCR SCR A V--------9 RxC -
RxC + 5--------X B SCR SCR B X-------10 RxC +
TxD - 6--------P A TxD TxD A P--------1 TxD -
TxD + 7--------S B TxD TxD B S--------2 TxD +
TxC - 9--------Y A SCT SCT A Y--------4 TxC -
TxC + 10-------AA B SCT SCT B AA--------5 TxC +
GND 12--------B GND GND B-------12 GND (Cable Shield)
v-C RTS RTS C-v
^-D CTS CTS D-^
Note the C and D wires must be tied together on the Winchester end of the
cable.
V.35/ DB25
Digi Card Local V.35 Remote V.35 Concentrator
HD15 Male on DB 25 Male on DB 25 Male HD15 Female
Signal Pin Pin Signal Signal Pin Pin Signal
RxD - 1--------3 A RxD RxD A 3--------6 RxD -
RxD+ 2-------16 B RxD RxD B 16--------7 RxD +
RxC - 4-------17 A SCR SCR A 17--------9 RxC -
RxC + 5--------9 B SCR SCR B 9-------10 RxC +
TxD - 6--------2 A TxD TxD A 2--------1 TxD -
TxD + 7-------14 B TxD TxD B 14--------2 TxD +
TxC - 9-------15 A SCT SCT A 15--------4 TxC -
TxC + 10-------12 B SCT SCT B 12--------5 TxC +
GND 12--------7 GND GND 7-------12 GND (Cable Shield)
v-4 RTS RTS 4-v
^-5 CTS CTS 5-^
Note the 4 and 5 wires must be tied together on the DB-25 end of the
cable.
RS422/ DB37
Digi Card Local RS422 Remote RS422 Concentrator
HD15 Male on DB 37 Male on DB 37 Male HD15 Female
Signal Pin Pin Signal Signal Pin Pin Signal
RxD - 1--------6 RD - RD - 6--------6 RxD -
RxD + 2-------24 RD + RD + 24--------7 RxD +
RxC - 4--------8 RT - RT - 8--------9 RxC -
RxC + 5-------26 RT + RT + 26-------10 RxC +
TxD - 6--------4 SD - SD - 4--------1 TxD -
TxD + 7-------22 SD + SD + 22--------2 TxD +
TxC - 9--------5 ST - ST - 5--------4 TxC -
TxC + 10-------23 ST + ST + 23--------5 TxC +
GND 12-------19 GND GND 19-------12 GND
RS-232 Synchronous Modem Cables
(Not compatible with older metal C/CONs)
Digi Card Local RS232 Remote RS232 Concentrator
HD15 Male on DB 25 Male on DB 25 Male HD15 Female
Signal Pin Pin Signal Signal Pin Pin Signal
RxD 1--------3 RxD RxD 3--------6 RxD
TxD - 6--------2 TxD TxD 2--------1 TxD -
RxC - 4-v---- 17 RxC RxC 17-----v--9 RxC -
= =
RxC + 5-^ ^-10 RxC +
TxC 9-v-----15 TxC TxC 15-----v--4 TxC
= =
TxC + 10-^ ^--5 TxC +
v---4 RTS RTS 4---v
>---6 DSR DSR 6---<
^--20 DTR DTR 20---^
GND 12--------7 SG SG 7-------12 GND
GND Shell--------1 GND GND 1------Shell GND
Note: The equal sign (=) in the previous diagram represents a 2200 pico
Farad capacitor linking the two adjacent signals. The 4,6 and 20 wires
must be tied together on the DB25 end of each cable.
Digi part numbers:
Host Adapter to EIA-232 SYNC Modem (HD15-DB25) P/N: 76000211.
EIA-232 SYNC Modem to Remote Concentrator (HD15-DB25) P/N: 76000212. Cables are 5 feet in length.
Fiber Optic Adapter Kit P/N: 76000071
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