Comtech EF Data SDM-9000 - Manual (Page 61)

SDM-9000 Satellite Modem Configuration
Rev.4 3–3
3.2 Modulator
The modulator PCB (AS/3969) is located in the top slot of the modem chassis. The
jumper settings are listed in Table 3-2. Figure 3-2 shows the modulator card and the
jumper locations.
Table 3-2. Modulator PCB Jumper Settings
Jumper Position Function
J7 1 to 2
2 to 3 Normal, processor control
Output forced ON, test mode
J9
(EEPROM size select) 1 to 2
2 to 3 27C512 (64K EEPROM)
27C256 (32K EEPROM)
Note: The modulator PCB jumpers in Table 3-2 are factory set.
Figure 3-2. Modulator PCB (AS/3969)