Optional Equipment
Terminal Block and Cable Kits
8-2 Model 49i Primary Standard Instruction Manual Thermo Fisher Scientific
Terminal Block and
Cable Kits
The optional terminal block and cable kits provide a convenient way to
connect devices to the instrument. These kits break out the signals on the
rear panel connector to individual numbered terminals.
Two types of terminal block and cable kits are available. One kit is for the
DB37 connectors and can be used for either the analog output connector or
the relay output connector. The other kit is for the DB25 connector and can
be used for the optional I/O expansion board. For associated part numbers,
refer to “External Device Connection Components” in the “Servicing”
chapter.
Each kit consists of:
• one six-foot cable
• one terminal block
• one snap track
Note Supporting all of the connections on units with the optional I/O
expansion board requires:
• two DB37 kits
• one DB25 kit
Cables Table 8-1 identifies the optional individual cables that are available for the
instrument and Table 8-2 provides the cable color codes. For associated part
numbers, refer to “External Device Connection Components” in the
“Servicing” chapter.
Note Table 8-2 provides the color coding for both 25-pin cables and 37-pin
cables. Color codes for pins 1-25 are for 25-pin cables; color codes for pins
1-37 are for 37-pin cables.
Table 8-1. Cable Options
Description Cable Length
DB37M to open end Six feet
DB37F to open end Six feet
DB25M to open end Six feet
RS-232
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