160
c
HAPTER
8:
Service
Model 336 Temperature Controller
8.10.1 IEEE-488
Interface Connector
Connect to the IEEE-488 Interface connector on the Model 336 rear with cables spec-
ified in the IEEE-488 standard. The cable has 24 conductors with an outer shield. The
connectors are 24-way Amphenol 57 Series (or equivalent) with piggyback recepta-
cles to allow daisy chaining in multiple device systems. The connectors are secured in
the receptacles by 2 captive locking screws with metric threads.
The total length of cable allowed in a system is 2 m for each device on the bus, or 20 m
maximum. The Model 336 can drive a bus of up to 10 devices. A connector extender is
required to use the IEEE-488 interface and relay terminal block at the same time.
FIGURE 8-8 shows the IEEE-488 interface connector pin location and signal names as
viewed from the Model 336 rear panel.
FIGURE 8-7
Ethernet pin and connector details
Pin
Symbol
Description
1
TXD+
Transmit data+
2
TXD-
Transmit data-
3
RXD+
Receive data+
4
EPWR+
Power from (not used)
5
EPWR+
Power from (not used)
6
RXD-
Receive data-
7
EPWR-
Power from switch- (not used)
8
EPWR-
Power from switch- (not used)
TABLE 8-6
Ethernet pin and connector details
EPWR
-
EPWR
-
RXD-
EPWR+ EPWR+
RXD+ TXD- TXD+
FIGURE 8-8
IEEE-488 interface
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Содержание 336
Страница 4: ...Model 336 Temperature Controller...
Страница 6: ...Model 336 Temperature Controller...
Страница 26: ...14 cHAPTER 1 Introduction Model 336 Temperature Controller...
Страница 54: ...42 cHAPTER 3 Installation Model 336 Temperature Controller...
Страница 84: ...72 cHAPTER 4 Operation Model 336 Temperature Controller...
Страница 104: ...92 cHAPTER 5 Advanced Operation Model 336 Temperature Controller...
Страница 164: ...152 cHAPTER 7 Options and Accessories Model 336 Temperature Controller...
Страница 178: ...166 cHAPTER 8 Service Model 336 Temperature Controller...