The CTP150 device has five separate EIA-530 cabling options for the serial interface module, with a male
HD-26 connector on the module end and the following connectors on the DCE or DTE end:
•
Female DB-25 connector on the DCE end for EIA-530/RS-422/V.11, RS-232/V.24, V.35
•
Male DB-25 connector on the DTE end for EIA-530/RS-422/V.11, RS-232/V.24, V.35
•
Female DB-15 connector on the DCE end for X.21
•
Male DB-15 connector on the DTE end for X.21
•
RJ-45 connector for Radio V.24 Sync interface
The pinouts for these connections have different configurations for EIA-530, RS-232, voice, and T1
interface signals.
EIA-530 Connector Interface Signal Pinouts (DB-25 Female DCE)
Table 3 on page 28 lists the EIA-530 interface signal pinouts for the HD-26 connector to the female DB-25
connector for the CTP150 platform.
Table 3: EIA-530 DCE Connector Interface Signals for HD-26 to Female DB-25
CircuitDescription
DB-25
Pin
HD-26
Pin
BBReceive Data—A (output from CTP)31
DDReceive Clock—A (output from CTP)172
DBTransmit Clock (from DCE)—A (output from CTP)153
DATransmit Clock (from DTE)—A (input to CTP)244
BATransmit Data (SD)—A (input to CTP)25
CFData carrier detect (DCD)—A (output from CTP)86
CCData set ready (DSR)—A (output from CTP)67
CBClear to send (CTS)—A (output from CTP)58
CBClear to send (CTS)—B (output from CTP)139
CARequest to send (RTS)—B (input to CTP)1910
CARequest to send (RTS)—A (input to CTP)411
28
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