1
Part No. 004-3282-004
DL-3282 MODEM
SETUP INSTRUCTIONS
INTERCONNECT CABLE INSTALLATION
This modem requires a power source with an operating
voltage range of 7 - 16 Vdc.
Note: A transceiver may
require a more restrictive operating range
.
*
See Figures 4 and 5 for pinout details.
The 3282 interfaces with user equipment through the DB-
25 RS232 connector. See Figure 1 for pinout details
.
DEFAULT FACTORY SETTINGS
Normal
Conventional
Bell 202
Half Duplex
Active High Squelch
FSK Audio
240 ms RTS to CTS Delay
100 mS Soft Carrier Turnoff debounce time
Transmit Input Level (pre-set for 400 mVrms)
The factory default setting for the RTS to CTS delay time is
set to the maximum delay for compatibility with a wide
range of products. When used with DRL synthesized radios
(DL-3400 and JSLM/RNet) a shorter delay time (30ms) may
be used
(refer to Tables 2 through 4 and Figure 3). Follow
steps a through c under setup switch S101.
RECEIVE INPUT LEVEL
For proper operation of the modem, the carrier level from
the transceiver should be 35 mVrms -1mVrms (or 99 mVp-
p - 2.8 mVp-p). DRL transceivers (DL-3400) are factory
adjusted to provide a data level output to the modem of 707
mVrms (or 2 V p-p). The data level output to the modem
when used with the DRL JSLM/RNet is 212 mVrms + 17.5
mVrms (or 0.6 V p-p + 0.05 V p-p).
ADJUSTMENTS
There are two adjustments on the modem board. These
adjustments have been set at the factory and may require
further adjustment in the field for your application.
DIP Switch S101
Transmit Level Adjust R400
Figure 2 DIP SWITCH S101 (DEFAULT SETTINGS)
SETUP SWITCH S101
a. To access S101 and make other adjustments, remove the
modem board from the housing by removing the 2 screws
on the RS-232 connector, the corner screws from the op-
posite end of the housing, and the top cover screw. Slide
the modem board out.
b. Set the switches as indicated in Tables 3 and 4 (0=Off,
1=On).
c. Re-install the modem board in the housing unless
performing adjustments described in the following two
sections.
Table 1 3282 INTERCONNECT CABLES
TRANSCEIVER
MODEL
DRL CABLE #
CONNECTOR TYPES
3400
023-3410-125
10-Pin (2)
*
(to spade terminals)
RNet / JSLM
697-3282-012
DE-15 (1) & DA-15 (1)
*
Table 2 RS-232 CONNECTOR PINOUT
RS-232 PINOUT
1 Shield_GND J101-1
2 RS232_DCE RXD J101-2
3 RS232_DCE TXD J101-3
4 RS232_RTS J101-4
5 RS232_CTS J101-5
6 RS232_DSR J101-6
7 RS232_GND J101-7
8 RS232_DCD J101-8
20 RS232_DTR J101-20
7
8
9
10
11
12
6
5
4
3
2
13
1
14
15
16
17
18
19
20
21
22
23
24
25
S101
7
8
1
2
3
4
5
6
ON
ON
N
O
R
M
A
L/
LO
O
P
C
O
N
V
EN
TI
O
N
A
L
B
EL
L
20
2/
10
3
SQ
U
EL
C
H
IN
V
ER
T
H
A
LF
/F
U
LL
D
U
PL
EX
O
PT
1
O
PT
2
O
PT
3
0
1
1
Figure 1 RS-232 Connector
