ADTRAN NxT1 HSSI/V.35 user manual Power UP and Initialization, Failed Self-Test Operation Alarms

Chapter 2. Installation

Table 2-2. HSSI/V.35 (SCSI-50) Pinout (Continued)

PIN (+ side)	PIN (- side)	DIRECTION			DESCRIPTION
—	39	—	Ancillary to DCE (Reserved)
14	—	I	V.35	RTS - Request to Send
15	40	I	V.35		TT Terminal Timing
16	41	I	V.35		SD Send Data
—	42	O	V.35	DCD - Data Carrier Detect
17-18	43	—	Ancillary to DCE (Reserved)
19	44	—	HSSI SG - Signal Ground
20	45	O	V.35		ST - Send Timing
21	46	O	V.35		RT - Receive Timing
22	47	O	V.35		RD - Receive Data
23	—	O	V.35	CTS - Clear to Send
—	48	I	V.35	Ground/Present
24	49	O	HSSI TM - Test Mode
25	50	—	HSSI SG - Signal Ground

POWER UP AND INITIALIZATION

The NxT1 HSSI/V.35 Module requires no initialization input during the power-up sequence, as described in the ATLAS 800 Series User Manuals. Any previously configured setting for the NxT1 HSSI/V.35 Module is auto- matically restored upon power-up.

Failed Self-Test

If the NxT1 HSSI/V.35 Module fails self-test, a message will be displayed on the LCD and the terminal menu self-test log during power-up. See the appropriate ATLAS 800 Series User Manual for details.

Operation Alarms

The red ALARM LED (located with the Module LEDs on the front panel) illuminates when an alarm condition is detected.

26 NxT1 HSSI/V.35 User Manual 61200771L1-1