User Manual

Half normal
T2, R2 & S
Full normal
T1, R1 & S
R1
S
R2
T2
T1
R1
S
R2
T2
T1
Signal Type
Mono (Unbalanced)
Mono (Balanced)
Stereo (Unbalanced) *
Digital (SPDIF)
Digital (AES/EBU)
Tip
Signal
+ (Hot)
Right
Signal
+ (Hot)
Ring
- (Cold)
Left
- (Cold)
Sleeve
Ground
Ground
Ground
Ground
Ground
Bantam
Jack
Note: Screen is always ground
Left and right channels may be
reversed.
*
Normalising a channel on the Isopatch Bantam
Wiring of different signal types to a Bantam Jack
Full normalHalf normal
Half or full normalising
Programming normalising
The offers a choice of half or full normalising on every channel. When half
normalised (sometimes called Sniff and Break), the link between the sockets is broken only when a
plug is inserted into the bottom socket (half of the pair of sockets). The top socket can be plugged into
without breaking the link to the socket below, allowing the signal to be manually patched into another
input whilst still connected to its ‘normal’ destination. This configuration is particularly useful because it
allows an output to be split and sent to two inputs simultaneously. In this situation, the ‘normal’ link can
still be broken by simply inserting an unconnected jack plug or patch cord into the bottom socket.
When a pair is fully normalised, the link between the sockets is broken when a plug is inserted into
either the top or bottom socket. This option should be used when an output must not be routed to more
than one input at a time.
The Isopatch Bantam is supplied with all sockets isolated
(not normalised) but any channel may be easily normalised
by soldering across special ‘program pads’ on the top printed circuit board (PCB). There are five
program pads on each channel and they act like switches - soldering across a program pad is like
closing a switch. When soldering a program pad, more solder is needed than for a normal joint
because the solder has to 'bridge' the gap in the pad. When bridged, the joint on the program pad will
look like a bead of solder. Take care not to get solder anywhere else on the PCB as this could cause a
short circuit and possibly damage the equipment connected to the Isopatch Bantam. If you have no
experience soldering, then ask your dealer to do this for you. To program normalising on any channel,
Isopatch Bantam