Lake Shore Model 218 Temperature Monitor User’s Manual
Service
7-7
F-218-7-6.bmp
Model 218
Computers and Printers
218 DE-9P
DB-25P
DE-9P
Pin Description Pin
Description
Pin
Description
1
No Connection (NC)
2
TD (out)
1
DCD (in)
2
Receive Data (RD in)
3
RD (in)
2
RD (in)
3
Transmit Data (TD out)
4
RTS (out)
3
TD (out)
4
Data Terminal Ready (DTR out)
5
CTS (in)
4
DTR (out)
5
Ground (GND)
6
DSR (in)
5
GND
6
Data Set Ready (DSR in)
7
GND
6
DSR (in)
7
Data Terminal Ready (DTR out) (tied to 4)
8
DCD (in)
7
RTS (out)
8
No Connection (NC)
20
DTR (out)
8
CTS (in)
9
No Connection (NC)
22
Ring in (in)
9
Ring in (in)
Figure 7-6. Serial Port Pinouts
7.10 TOP OF ENCLOSURE REMOVE AND REPLACE PROCEDURE
WARNING: To avoid potentially lethal shocks, turn off controller and disconnect it from
AC power line before performing this procedure. Only qualified personnel
should perform this procedure.
REMOVAL
1. Set power switch to off (
O
) and disconnect power cord from rear of unit.
2. If attached, remove 19-inch rack mounting brackets.
3. Use 5/64 hex key to remove four screws attaching top panel to unit.
4. Use 5/64 hex key to loosen four screws attaching bottom panel to unit.
5. Carefully remove the back bezel by sliding it straight back away from the unit.
6. Slide the top panel back and remove it from the unit.
INSTALLATION
1. Slide the top panel forward in the track provided on each side of the unit.
2. Carefully replace the back bezel by sliding it straight into the unit.
3. Use 5/64 hex key to install four screws attaching top panel to unit.
4. Use 5/64 hex key to tighten four screws attaching bottom panel to unit.
5. If required, reattach 19-inch rack mounting brackets.
6. Connect power cord to rear of unit and set power switch to on (
l
).
Summary of Contents for 218S
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