The table shows some of the Cisco WAN modules and their main characteristics, such as FRGA type, memory chip, etc:
HWIC-2SHDSL | EHWIC-3G-HSPA+7-A | VWIC3-2MFT-T1/E1 | EHWIC-4ESG | HWIC-3G-CDMA | HWIC-1ADSL | ||
1 | FPGA | Cyclone II (EP2C35F484C8) | Cyclone III (EP3C40F324C6N) | Stratix II (EP2S30F484C5N) | Cyclone III (EP3C25F324C8N) | Cyclone II (EP2C35F484C8) | Cyclone (EP1C20F324C8) |
M4K/M9K blocks (total RAM Kb) | 105 / 0 (483) | 0 / 126 (1,134) | 144 / 0 (1,369) | 0 / 66 (594) | 105 / 0 (483) | 64 / 0 (288) | |
2 | SSRAM | CY7C1371S-133AXC | CY7C1371S-133AXC | CY7C1360S-166AXC | GS880Z36CGT-200 | no (DDR SDRAM) TSOP-48 for SRAM or Flash | IDT 71V547X-S100PFG |
3 | SSRAM, Mb | 18 Mb (2 MB) | 18 Mb (2 MB) | 9 Mb (1 MB) | 9 Mb (1 MB) | - | 4.5 Mb (0.5 MB) |
4 | JTAG | no | yes | no | no | yes | no |
It was possible to collect a collection of Cisco WAN modules, though it took a lot of time, but little money. Each module on eBay costs from 3$ to 15$, because they aren't used in modern networks.
In the section Files you can find files with the pinout of the Edge connector and SSRAM.
I'd love to find a way to use my VA-DSL-A as a standalone modem as I need something with lower power consumption AND a small form factor. No one makes an ADSL2/VDSL modem in such a small package that I'm aware of. :/
If OP is interested and can find one cheap like I did (around $11 shipped) I would love to know the pinout, and find out if that's possible!