The GCD-8DLCA and the GCD-16DLCA are both discussed in this section.
Any differences between the two are noted. These blades provide:
 8 (GCD-8DLCA) OR 16 (GCD-16DLCA) digital extension circuits
(used for digital telephones, DSS consoles, PGDAD adapters)
 These ports provide -48V feeding.
 Two blade status LEDs – One Live LED, One Busy/Idle LED
Refer to the following tables for maximum upgrade capacities of the
GCD-8DLCA/GCD-16DLCA ESIU blades