Patton electronics 1045RC, User Manual

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S2-1 and S2-2: RTS/CTS Delay
The combined settings for switches S2-1 and S2-2 determine the
amount of delay between the time the Model 1045RC “sees” RTS and
when it sends CTS. Options are no delay, 7 ms and 53 ms.
S2-1 S2-2 Setting
On On 7 ms
On Off 53 ms
Off On No delay
Off Off No delay
S2-3 and S2-4: Word Length
Switches S2-3 and S2-4 are set in combination to determine the
word length for asynchronous data.
S2-3 S2-4 Setting
Off On 8 bits
On On 9 bits
Off Off 10 bits
On Off 11 bits
S2-5: Extended Signaling Rate
The setting for switch S2-5 determines the range of variability the
Model 1045RC “looks for” in asynchronous data rates (i.e., the actual
variance from a given frequency level the Model 1045RC will tolerate).
S2-5 Setting
Off -2.5% to +1% (normal)
On -2.5% to +2.3% (extended)
S2-6: Asynchronous/Synchronous Mode
The setting for switch S2-6 determines whether the Model 1045RC
is in asynchronous or synchronous operating mode.
S2-6 Setting
On Asynchronous*
Off Synchronous
*Note: in asynchronous mode, the Clock Source must be set to
“Internal” (S1-5 = On, S1-6 = On)
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S2-7: RS-232/V.35 Initiation of Local Analog Loopback Test
The setting for switch S2-7 determines whether or not the Model
1045RC’s local analog loopback test can be initiated by raising pin 18
on the RS-232 interface (pin N on the V.35 interface).
S2-7 Setting
On RS-232/V.35 initiation enabled
Off RS-232/V.35 initiation disabled
S2-8: RS-232/V.35 Initiation of Remote Digital Loopback Test
The setting for switch S2-8 determines whether or not the Model
1045RC’s remote digital loopback test can be initiated by raising pin 21
on the RS-232 interface (pin L on the V.35 interface).
S2-8 Setting
On RS-232/V.35 initiation enabled
Off RS-232/V.35 initiation disabled
3.1.3 CONFIGURATION JUMPER “JP3”
Jumper JP3 is used to set 2-wire or 4-wire operation. Figure 3
(below) shows the possible positions of the strap on its pegs. Please
note the orientation of the jumper on the PC board.
(continued)
8
Figure 5 Orientation of jumper JP3
Front of PC Board Rear of PC Board
1 2 3 1 2 3 1 2 3