ADC HRM-238 L1 user manual AUX P3 and P5 Connectors

Installation LTPH-UM-1237-04

Use a null modem connector for cross-over cabling when attaching a device that is not configured as DCE (such as terminals or computers running terminal emulation software) to these connectors. Table 5 shows the pinouts for the two AUX ports (one port for each management unit). Table 6 shows the pinouts for the two OS ports (one port for each management unit).

Table 5. AUX P3 and P5 Connectors

Pin	Description	I/O	Pin	Description	I/O
1	N/C		14	N/C
2	AUX_TX	O	15	N/C
3	AUX_RX	I	16	N/C
4	N/C		17	N/C
5	N/C		18	N/C
6	AUX_DSR-	I	19	N/C
7	LGND	I	20	AUX_DTR-	O
8	N/C		21	N/C
9	N/C		22	N/C
10	N/C		23	N/C
11	N/C		24	N/C
12	N/C		25	N/C
13	N/C

Table 6. OS Port P2 and P4

Pin	Description	I/O	Pin	Description	I/O
1	N/C		14	N/C
2	OS_TX	O	15	OS_TCLK	I
3	OS_RX	I	16	N/C
4	OS_RTS-	O	17	OS_RCLK	I
5	OS_CTS-	I	18	N/C
6	OS_DSR-	I	19	N/C
7	LGND	I	20	OS_DTR-	O
8	N/C		21	N/C
9	N/C		22	N/C
10	N/C		23	N/C
11	N/C		24	OS_TCLK	I
12	N/C		25	N/C
13	N/C

For further details about connecting to the AUX or OS connectors, consult the appropriate user manual for the management unit and applicable software.

10 July 21, 2004 HRM-238 List 1