ASM-10/8 Installation and Operation Manual Chapter 2. Installation and Setup
09/10/00 16:26 Installation and Setup 2-3
Opening the ASM-10/8 Case
To reach the internal jumpers and switches of ASM-10/8, it is necessary to
open its case.
➤
➤ ➤
➤ To open the ASM-10/8 case:
1. Disconnect all the cables connected to ASM-10/8.
2. Turn the unit over (bottom facing up).
3. Unscrew the four cover screws.
4. Turn the unit over (bottom facing down).
5. After the four screws released, remove the ASM-10/8 top cover by
pulling it straight up.
Setting the Internal Jumpers and Switches
The internal jumpers and switches located on the ASM-10/8 printed circuit
board (PCB) are identified in Figure 2-1. Their numbers under heading
"Item" in Table 2-1 correspond to the identification numbers shown in
Figure 2-1.
1
2
3
4
5
6
70
V.54-DLY
ON OFF
SWITCH
EN DIS
RPF
ON OFF
AGC
CTRLON
PIN 21
EN DIS
PIN 18
EN DIS
2W/4W
2W 4W
CARRIER
CTRLON
CTS-DLY
0 ms
8 ms
64 ms
RCV IMPD
150
300
600
HIGH
XMT TIMING
INT
EX
RCV
ASY
XMT IMPD
600
300
150
LOW
XMT LEVEL
0 dbm
-3 dbm
-6 dbm
-9 dbm
CHAS GND
DIS
CONN
GND
GND
RCV
XMT
DTE
Fuse
S3
OFF OFF 8 BIT ON =25%
OFF ON 9 BIT
ON OF F 10 BIT
ON ON 11 BIT OFF=12.5%
S4 LEN S 2(%)
S1
S2
S3
S4
123
4579
1011121315 1416
86
Figure 2-1 ASM-10/8 PCB Layout