CANOGA PERKINS 2340 Universal Fiber Optic Modem - Manual (Page 31)

EdgeAccess® Universal Chassis System
Model 2340 Model User Manual 4-7
5. To return to the System Configuration menu, press <Esc>.
Note: When setting the Internal Rate parameter, the 2340 may not be able to generate the exact
rate. To calculate the available rates, use this equation:
Rate = Osc (PLL_N/PLL_M) (1/Div)
Where
Ocs = 16384000 Hz, 24704000 Hz, or custom oscillator rate
32 ≤ PLL_N ≤ 254
64 ≤ PLL_M ≤ 128
2 ≤ Div ≤ 65354
and PLL_N, PLL_M, and Div are even numbers
Table 13. Interface Configuration Parameters and Values
ELIM Group Parameter Possible Values
L130
EIA-423/232, EIA-530,
EIA-449/422, or V.35 Interface Type EIA/423/232, EIA-530, EIA-449/422, or
V.35
Operating Mode Internal, Slave, External, or
Asynchronous
Internal Rate (bps)
(select for Internal Mode)
Type the rate, then confirm the rate
calculated from the Rate equation above
TD Timing, the clock that sends
data to the fiber interface
(select for Internal, Slave, or
External Modes) Internal Mode: SCTE, SCT, or SCT
Inverted
Slave Mode: SCTE, SCTE Sampled,
SCT, or SCT Inverted
External Mode: SCTE or SCTE sampled
RD Timing, the clock that shifts
data to the electrical interface
(select for External Mode) SCT or SCR
DCD Output Remote RTS or CLS (DCD False if CLS
is True)
KG CTS(A)
(select for EIA-530)
Normal, +6V/GND, +6V/-6V, GND/-6V,
GND/+6V, -6V/+6V, or -6V/GND
CTS Output
(select for EIA-423/232,
EIA-449/442, or V.35, and
KG CTS(A) set to Normal)
Local RTS, Local RTS & DCD, or
Remote DTR/RI/IC
DSR Off When Far Local Test or Any Test On