Chapter 2 Installation and Setup ASM-60 Installation and Operation Manual
2-4 Installation and Setup
Connecting the DTE The ASM-60 DTE interface provides interface for input/output data, clock
reference and control signals between the modem and the DTE. The ASM-60 DTE
interface can be either HSSI interface module, terminating in SCSI 50 female
connector (see Table 2-2), or one of the Ethernet interface modules, described in
greater detail in Appendix A, Appendix B and Appendix C.
➤ To connect the HSSI interface:
• At tach the HSSI cable, terminated by SCSI 50 male connector to the SCSI 50
socket on the rear panel of ASM-60.
Table 2-2. HSSI Interface Connector Pinout
Signal Name Function ASM-60 Signal Direction Pin (+Side) Pin (-Side)
SG Signal Ground 1 26
RT Receive Timing IR-DXC From ASM-60 2 27
CA DCE Available DSR From ASM-60 3 28
RD Receive Data IR-RXD From ASM-60 4 29
LC Loopback Circuit C – From ASM-60 5 30
ST Send Timing IR-TXC From ASM-60 6 31
SG Signal Ground – – 7 32
TA DTE Available DTR – 8 33
TT Terminal Timing IR-EXTC To ASM-60 9 34
LA Loopback Circuit A – – 10 35
SD Send Data IR-TXD To ASM-60 11 36
LB Loopback Circuit B – – 12 37
SG Signal Ground – – 13 38
5 Ancillary to DCE – – 14–18 39–43
SG Signal Ground – – 19 44
4 Ancillary from DCE – – 20–23 45–48
TM Test Mode – – 24 49
SG Signal Ground – – 25 50