Remove the front cover of the top shelf and starting at the right hand
side
- Herald A (1st Generation)
- AC/DC Power Unit 1A1/SA20013 (White Handle)
- DC/DC Power Unit 1A1/SA20005 (Red Handle)
- Memory Card 1A1/SA20002 (Black Handle)
- Processor Card 1A1/SA20001 (Green Handle)
- Tone Card 1A1/SA20003 (Clear Handle)
- 5 slots at the left hand side fitted with blue or yellow interface
cards
- The majority of the terminals will have Tele x/SA2001x
underneath
- Herald B5 (2nd Generation)
- AC/DC Power Unit 1A1/SA20013 (White Handle)
- DC/DC Power Unit 1A1/SA20005 (Red Handle)
- Empty Slot
- Processor Card 1A1/SA20550 (Green/Black Handle)
- Tone Card 1A1/SA20003 (Clear Handle)
- 5 slots at the left hand side fitted with blue or yellow interface
cards
- The majority of the terminals will have Tele x/SA2001x
underneath
- Herald B8 (3rd Generation)
- AC/DC Power Unit 1A1/SA20013 (White Handle)
- DC/DC Power Unit 1A1/SA20005 (Red Handle)
- Empty Slot
- Processor Card 1A1/SA20551 (Green/Orange Handle)
- Tone Card 1A1/SA20003 (Clear Handle)
- 5 slots at the left hand side fitted with blue or yellow interface
cards
- The majority of the terminals will have Tele x/SA2001x underneath
- Herald B8 was effectively a Pentara but was an upgrade to existing
systems.
- Pentara (4th Generation)
- Combined Power Unit 1A1/SA20553 (White/Yellow Handle)
- Processor Card 1A1/SA20552 (Green/Yellow Handle)
- 7 slots at the left hand side fitted with blue, yellow or brown
interface cards
- The majority of the terminals will have TX5x underneath
- Pentara Plus (5th Generation)
- Combined Power Unit 1A1/SA20553 (White/Yellow Handle)
- Processor Card 1A1/SA20579 (Green/White Handle)
- 7 slots at the left hand side fitted with blue, yellow or brown
interface cards
- The majority of the terminals will have TX5x or TX6x
underneath
Taken from Keith Doxey's
telephone web site.
PARTS LIST
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