Specifications

SCU Control Port Operation
61181310L2-5D 11
SCU CONTROL PORT OPERATION
The Total Access 3000/3010 System Controller Unit provides a front panel-mounted DB-9
connector that supplies an RS-232 interface for connection to a controlling terminal. The
pinout of the DB-9 is illustrated in Figure 6.
Figure 6. RS-232 (DB-9) Pin Assignments
The terminal interface operates at a default data rate of 9.6 kbps (from 9.6 to 115.2 kbps is
possible via Total Access 3000/3010 SCU provisioning options). The asynchronous data
format is fixed at 8 data bits, no parity, and 1 stop bit. Disable the line wrap feature of
emulation programs.
NOTE
If you are using a personal computer (PC) with terminal emulation
capability, disable any power saving programs. Otherwise, commu-
nication between the PC and the HDSL4 unit may be disrupted,
resulting in misplaced characters or screen time outs.
24 24/56 24/56
25 25/57 25/57
26 26/58 26/58
27 27/59 27/59
28 28/60 28/60
Table 5. Total Access 3000/3010 Backplane Connector Pinout (Continued)
Slot
Total Access 3000/3010
Loop Pair 1 and Pair 2 (DS1 Side)
DSX-1 Pair 7 and Pair 8 (DSX-1 Side)
6
7
8
9
1
2
3
4
5
TXD (Transmit Data)
RXD (Receive Data)
SGN (Signal Ground)