5 of 24
Table 3.2.1 – Controller Card Rear PC Board Jumper Settings
Jumper
W1
W2
RJ45 Shield
Connected to Frame Ground *
Open
Pin 1 to Pin 2
Pin 2 to Pin 3
Power Supply Ground
100 Ohm Connection to Frame Ground *
Direct Connection to Frame Ground
Pin 1 to Pin 2
Pin 2 to Pin 3
* Factory Default Positions
Table 3.2.2 – RJ45 10Base-T Ethernet Port Pin Assignment
Pin
Signal Name
Signal Direction
1
Transmit Pair
Output
2
Transmit Pair
Output
3
Receive Pair
Input
6
Receive Pair
Input
Table 3.2.3 – RJ11 GANG-IN Port Pin Assignment
Pin
Signal Name
Signal Direction
5
Signal Ground
Not Applicable
4
Transmit Data / V+
Output / Output
3
Receive Data / V-
Input / Output
2
System Control (OPEN,+12,-12)
Input and Output
Note: The function of pins 3 and 4 on the GANG-IN port, are set using jumpers on the front card (see section 3.3
below). Pins 3 & 4 can be configured as TXD and RXD for serial communication, or as V+ and V- to control the
Auto Bypass Switch card group with a remote toggle switch. The connections to V+ and V- are through 1 K ohm
resistors. The System Control signal can be used as an input or an output. If used an Input, this pin should normally
be open. This input is driven to +V to switch the system to A, and is driven to –V to switch the system to B. Once
the system switches connection states, the Input can be returned to open. If used as an Output, this signal is driven to
+10 VDC when the user initiates a system switch to A, and is driven to –10 VDC when the user initiates a system
switch to B.
Table 3.2.4 – RJ11 GANG-OUT Port Pin Assignment
Pin
Signal Name
Signal Direction
5
No Connection
Not Applicable
4
Transmit Data
Output
3
Receive Data
Input
2
Signal Ground
Not Applicable
Note: The RJ11 Gang Out port is not typically used for Auto Bypass Switch applications.
3.3 Controller Card Front PC Board Configuration
The Controller Card front pc board has an 8-position dipswitch and four jumpers for user configurable options. The
four 3-position jumpers are positioned such that pin 1 is toward the front panel, and pin 3 is toward the rear of the
card. Each 3-position jumper has a 2-position shunt, used to connect two of the three positions together.
