Zhone Technologies 900 - Manual (Page 75)

Data Cards IMACS System Release 5.1.6 2-9
SRU Card SRU Card User Screens and Settings
The number of subrate time slots available for x.50 depends on the selected Rate. If the 2.4
Rate is selected, the number available will be 20. If the 4.8 Rate is selected, the number
available will be 10. If the 9.6 Rate is selected, the number available will be 5. When
multiplexing different rate circuits on the same time slot, the following formula is necessary
to compute the position in the sub-rate time slot: a 9.6 kbps circuit will occupy slots n, n+5,
n+10, and n+15. Similarly, a 4.8 kbps circuit will occupy slots n and n+10, and a 2.4 kbps
circuit will occupy slot n (where n is the time slot selected).
INTF
The Interface setting allows you to choose the protocol necessary for the terminal associated
with this port. The choices are asyn (Asynchronous), sync (Synchronous), and v.14 (v.14). If
Synchronous transmission is selected, the choices for STOP, DATA and PAR will show as n/a
(not applicable).
Both asyn and v.14 options provide asynchronous to synchronous conversion. The v.14 option
is an industry standard which will allow the card to operate with many DSUs. The asyn option
is a streamlined propriety algorithm which will increase the performance of the card.
COM CF
The Communication Configuration setting is a three-step process that allows you to choose
the Data bits, Stop bits, and Parity to be used. The Data setting allows you to change the
bits-per-byte number depending upon the type of terminal associated with this particular port.
The options are 8, 7, 6, and 5.
The Stop bits option allows you to select the number of Stop bits that check data sampling for
the terminal associated with this port. The options are 1 and 2.
The third choice is the Parity setting that changes the data parity for the terminal associated
with this port. The options are none, odd, even, space and mark.
CTS
The Clear To Send (CTS) setting allows you to define how the port should respond upon
receiving a Request to Send (RTS) from the attached DTE. This setting also allows you to
change the delay time (in milliseconds) from when the card receives RTS until it issues CTS.
The local option allows RTS to control CTS. The remote-local options allows RTS to control
both the CTS of the local equipment and RLSD of the remote equipment. The options are
perm (permanent), l0 (local–immediate), l30 (local - 30 ms), l60 (local - 60 ms), l100 (local
- 100 ms), rl0 (remote/local - immediate), rl3 (remote/local - 30 ms), rl6 (remote/local - 60
ms), rl10 (remote/local - 100 ms), and off.