Connecting the dte, Below) – RAD Data comm 4-Wire Symmetrical VDSL Modem ASM-60 User Manual
Page 28
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
), or one of the Ethernet interface modules, described in
greater detail in
To connect the HSSI interface:
• Attach 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